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General Electric Side-by-Side
Knob Control/Metal Liner Refrigerator
MODEL SERIES:
GSS20
GSS22
GSS25
ESS22
ESS25
HSS22
HSS25
SSS25
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C
GE Consumer Home Services Training
TECHNICAL SERVICE GUIDE
General Electric Side-by-Side Knob Control/Metal Liner Refrigerator
MODEL SERIES: GSS20 GSS22 GSS25 ESS22 ESS25 HSS22 HSS25 SSS25
PUB # 31-9071
02/01
!
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
WARNING
To avoid personal injury, disconnect power before servicing this product. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks.
RECONNECT ALL GROUNDING DEVICES
If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened.
GE Consumer Home Services Training Technical Service Guide Copyright © 2001
All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from the General Electric Company.
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 General Locator Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component and Connector Locator Views . . . . . . . . . . . . . . . . . . . . Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illustrated Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 15 32 50 54 58
1
Introduction
2001 Energy SxS models are being introduced in response to the requirement for more energyefficient refrigerators by mid year 2001, along with having feature and operation enhancements. The primary differences in this refrigeration system are the adaptive defrost system (see Pub. # 31-9062), control board, software, and control systems that operate independently in fresh food and freezer sections. The new high-efficiency control system has the ability to cycle components and adjust fan speeds as required to maintain temperaturesetting ranges in freezer and fresh food sections. Feedback systems are digital inputs and relay outputs. Sensors (thermistors) are used to measure temperature with communications to a main PC board, which controls the unit components. The refrigerator has versions that have control knobs or touchpads (Profile models) to provide inputs to a microprocessor. The freezer/ fresh food controls are temperature setpoint type and have settings of 0-9 with 9 being the coldest temperature possible. The new NO CLEAN condenser is serviceable from the rear and is designed to prevent the customer from having to clean the condenser in normal usage conditions. Sealed system operation and compressor are functionally the same as previous models, with some minor changes. The 20', 22', and 25' side-by-side models are the models affected. These models are available with through-the-door chilled water and ice dispenser, and built-in water filter feature. On models requiring icemaker, the newest electronic icemaker (see Pub. # 31-9063) has been or can be installed. The freezer has adjustable shelves, slide-out Spillproof shelf, QuickSpace shelf, and deep door shelves, based on model. The fresh food section has a baking soda holder, fruit and vegetable drawer, drawer dividers, adjustable humidity drawer, and convertible meat drawer. This new high-efficiency refrigerator is a combination of the most efficient refrigeration system and the most desirable customer features available.
2
Installation
ATTENTION INSTALLER:
RAISE ROLLERS CARDBOARD PROTECTS DOOR EDGES
FOR A QUALITY INSTALLATION, FOLLOW THESE INSTRUCTIONS.
PPPPPP, @@@@@@@ ,,,,,,P PPPPP,, @@@@@@@ ,,,,,PP P , @ @ , P P @ ,
DO NOT OVERTIGHTEN STRAP
4
2
5 6
9 IS COLDEST 0 IS OFF
4
2
5 6
7
8
3
3
9
7
8
9
1
ROLLER ADJUSTMENT HEX-HEAD BOLTS (4) MAKE SURE FRONT ROLLERS DO NOT REST ON TRUCK TRUCK FROM SIDE ONLY
0
FREEZER
1
FRESH FOOD
· REMOVE AND DISCARD SKIDBOARDS and bolts used to hold skidboards. · Use PADDED HAND TRUCK to protect refrigerator finish.
· LEAVE TAPE ON DOORS until refrigerator is in its final location.
· ADJUST FRONT ROLLERS so that refrigerator is solid and doors close easily. · MAKE SURE DOORS ARE EVEN AT TOP. Check gasket seal.
· SET BOTH CONTROLS TO "5". · SET ICEMAKER TO OFF until water line is connected.
· IMPORTANT: IMMEDIATELY REMOVE ALL CLEAR PROTECTIVE TAPE FROM TRIM. · TO REMOVE TAPE RESIDUE AND HANDPRINTS, USE APPLIANCE POLISH. · REMOVE ALL TAPE AND OTHER PACKAGING MATERIAL FROM INSIDE REFRIGERATOR. DO NOT REMOVE SERIAL PLATE.
IF NECESSARY TO REMOVE DOORS, REMOVE ALL HINGES. FOR DISPENSER MODELS:
WHEN INSTALLING DOORS...
HINGE COVER
TO REINSTALL DOORS...
TUBING CLIP ALIGN DOORS EVENLY AT TOP COLLAR
58
FRESH FOOD HINGE ADJUSTMENT PIN
/ 3/4
WIRING CONNECTORS
PRESS THE WHITE COLLAR AS YOU PULL OUT THE TUBING.
· Push tubing into connector (5/8 to 3/4) to prevent leakage.
· At lower left hinge, remove tubing from the clip. · Disconnect the water line.
· At upper hinges, disconnect wiring connectors. · Remove both hinges with each door to prevent damage to tubing or wiring.
· Reinstall lower hinges and tighten hinge screws firmly. · Place door on lower hinge pin and install upper hinges. Tighten upper hinge screws firmly. · Align both doors evenly at top by adjusting pin on lower fresh food hinge. · Reconnect wiring connectors and reinstall hinge covers. · Reinstall tubing by pushing tubing into connector. · Put tubing back into clip.
FRANÇAIS · ESPANOL
PREFERRED METHOD
IMPORTANT: PLEASE READ CAREFULLY
FOR PERSONAL SAFETY, THIS APPLIANCE MUST BE PROPERLY GROUNDED.
The power cord of this appliance is equipped with a three-prong (grounding) plug that mates with a standard three-prong (grounding) wall receptacle to minimize the risk of electric shock hazard from this appliance. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded.
MAKE SURE PROPER GROUND EXISTS BEFORE USE TEMPORARY METHOD (Adapter plugs not permitted in Canada)
Where a standard two-prong wall receptacle is encountered, it is the personal responsibility and obligation of the customer to have it replaced with a properly grounded three-prong wall receptacle. DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER CORD. USAGE SITUATIONS WHERE THE APPLIANCE'S POWER CORD WILL BE DISCONNECTED INFREQUENTLY Because of potential safety hazards under certain conditions, we strongly recommend against the use of an adapter plug. However, if you still elect to use an adapter, where local codes permit, a TEMPORARY CONNECTION may be made to a properly grounded two-prong wall receptacle by the use of a UL listed adapter which is available at most hardware stores. The larger slot of the adapter must be aligned to provide proper polarity in the connection of the power cord. CAUTION: Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded through the house wiring. The customer should have the circuit checked by a qualified electrician to make sure the receptacle is properly grounded. When disconnecting the power cord from the adapter, always hold the adapter with one hand. If this is not done, the adapter ground terminal is very likely to break with repeated use. Should this happen, DO NOT USE the appliance until a proper ground has again been established.
ENSURE PROPER GROUND AND FIRM CONNECTION BEFORE USE
USAGE SITUATIONS WHERE THE APPLIANCE'S POWER CORD WILL BE DISCONNECTED FREQUENTLY Do not use an adapter plug in these situations because frequent disconnecting of the power cord places undue strain on the adapter and leads to eventual failure of the adapter ground terminal. The customer should have the two-prong wall receptacle replaced with a three-prong (grounding) receptacle by a qualified electrician before using the appliance.
197D3266P001
31-5087
9-00 JR
3
Specifications
4
Nomenclature
ENGINEERING NOMENCLATURE A = INIITIAL DESIGN CONFIGURATION S = SIDE-BY-SIDE REF. VOLUME 20 / 22 / 25 CU. FT. MODEL YEAR M = 2001 B = 1ST REVISION ETC. DOOR TYPE F = FLAT DOOR
G S S 2 5 I F M A F W W
BRAND/PRODUCT G = GE H = HOTPOINT P = PROFILE (GE) E = ETERNA (GE) R = RCA S = SELECT (GE) DEPTH/POWER S = STANDARD DEPTH T = TROPICAL G = GLOBAL INTERIOR/SHELVES A = LEADER WIRE D = DELUXE WIRE I = DELUXE GLASS K = SPILL PROOF/SLIDE-OUT GLASS M = SPILL PROOF/SLIDE-OUT GLASS & QUICK SPACE Q = SHOWCASE DERIVATIVE U = AVB DERIVATIVE W = HPS (CONTRACT) DERIVATIVE X = REGIONAL DERIVATIVE
GEA00687
ICEMAKER/EXTERIOR B = NON-DISPENSER / ICE-MAKER READY D = CUBED ICE / WATER E = CUBED & CRUSHED ICE / WATER F = 6 MO. FILTER / CUBED & CRUSHED ICE G = 1 YR. FILTER / CUBED & CRUSHED ICE I = IN-LINE FILTER / INDICATOR & C/C/W
EXTERIOR COLOR WW = WHITE/WHITE AA = ALMOND/ALMOND BB = BLACK/BLACK CC = BISQUE/BISQUE WH = WHITE/BLACK AD = ALMOND/BLACK
Note: Mini Manual/Tech Data Sheet is located in a plastic bag in the control console.
5
Warranty Information
Sales slip or cancelled check is required as proof of original purchase date to obtain service under warranty. Note: Water filter cartridge warranty is 30 days. All warranty service is provided by our Factory Service Centers or an authorized Customer Care® technician.
For The Period Of: One Year From the date of the original purchase Five Years From the date of the original purchase GE Will Replace: Any part of the refrigerator which fails due to a defect in materials or workmanship. During this full one-year warranty, GE will also provide, free of charge, all labor and in-home ser vice to replace the defective par t.
Any part of the sealed refrigerating system (the compressor, condenser, evaporator, and all connecting tubing) which fails due to a defect in materials or
workmanship. During this five-year warranty, GE will also provide, free of charge, all labor and in-home ser vice to replace the defective par tin the sealed refrigerating system.t.
Lifetime
From the date of the original purchase
Any see-through pan or drawer furnished with the refrigerator if the pan or drawer breaks during normal household use. Drawer covers are not included. During this limited lifetime warranty, you will be responsible for any labor or in-home service costs.
What GE Will Not Cover:
· · · Service trips to your home to teach you how to use the product. Improper installation. Failure of the product if it is abused or used for other than the intended purpose or used commercially. Loss of food due to spoilage. Replacement of house fuses or resetting of circuit breakers. · · · · Replacement of the water filter cartridge due to water pressure that is outside the specified operating range or due to excessive sediment in the water supply. Replacement of water filter cartridge after its expected useful life, 30 days. Damage to the product caused by accident, fire, floods, or acts of God. Incidental or consequential damage caused by possible defects with this appliance.
· ·
This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. In Alaska, the warranty excludes the cost of shipping or service calls to your home. Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. To know what your legal rights are, consult your local or state consumer affairs office or your state's Attorney General. Warrantor: General Electric Company. Louisville, KY 40225
6
Operating Characteristics
Table of Contents
Normal Operating Characteristics That Are Different from Previous Models . . Abnormal Operating Characteristics (Incorrect Operation) . . . . . . . . . . . . . . . Adaptive Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling Operation (Adaptive Defrost) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pre-Chill Operation (Adaptive Defrost) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Defrost Heater Operation (Adaptive Defrost) . . . . . . . . . . . . . . . . . . . . . . . . . . . Dwell Period (Adaptive Defrost) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Post Dwell (Adaptive Defrost) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liner Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dispensing Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dispenser Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8 8 8 8 9 9 9 9 9 9
Dispenser Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hinge System and Door Closure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Airflow (Cabinet Interior) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 "Jelly Roll" Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Main Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7
Normal Operating Characteristics That Are Different from Previous Models · · ·
Icemaker auger rotates clockwise. Evaporator fan running, without compressor or condenser fan. Post Dwell (Adaptive Defrost), compressor, and condenser fan on with evaporator fan off after defrost cycle. Liner Protection Mode, fan comes on when the doors are open for 3 minutes. Evaporator fan and compressor can run continuously for 2 hours (Adaptive Defrost). Different sound levels can be heard when the fan changes speed. Response time for drastic temperature change is 2 to 10 minutes. The main control board will only respond to 8 degrees (Fahrenheit) of temperature change per minute as determined by resistance of sensor.
· ·
Length of time the compressor has run since the last defrost cycle. Amount of time the defrost heaters were on in the last defrost cycle.
Adaptive Defrost is divided into 5 separate cycles. Those operations are:
· · · · ·
Cooling Operation Pre-Chill Operation Defrost Heater Operation Dwell Period Post Dwell
· · · ·
(See Pub. #31-9062 for more information on Adaptive Defrost.)
Cooling Operation (Adaptive Defrost)
During the cooling operation, the main control board monitors door opening (fresh food and freezer doors) and compressor run times. The board counts the time the doors are open. It reduces the length between defrosts by 255 seconds (multiplication factor) for each second that each door is open. If both doors are open, it reduces it by twice the amount. The multiplication factor reduces compressor run time. If the doors are not opened, the compressor will run up to 60 hours between defrosts. If the doors are opened frequently and/or for long periods of time, the compressor run time between defrosts will be reduced to as little as 8 hours.
Abnormal Operating Characteristics (Incorrect Operation) · · ·
Evaporator fan on, compressor off, and damper shut (except liner protection mode). Rapid fan speed changes, fan takes at least 1 minute to change speeds. Compressor running without the condenser fan. The compressor and condenser fan should always run at the same time.
Pre-Chill Operation (Adaptive Defrost) Adaptive Defrost
Adaptive Defrost can be described as a defrost system that adapts to a refrigerator's surrounding environment and household usage. Unlike conventional defrost systems that use electromechanical timers with a fixed defrost cycle time, Adaptive Defrost utilizes an intelligent, electronic control to determine when the defrost cycle is necessary. In order to accomplish the correct defrost cycle time, the main control board monitors the following refrigerator operations:
F R E E Z E R A I R
F° / C° 25° / -4° 20° / -7° 15° / -9° 10° / -12° 5° / -15°
08:00
PRE-CHILL MODE
T E 0° / -18° M P -5° / -21° E R A -10° / -23° T U -15° / -26° R E S -20° / -29°
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
Pre-Chill Defrost
·
Length of time the refrigerator doors were open since the last defrost cycle.
When the main control board determines that defrost is necessary, it will force the refrigerator
8
into a continuous cool mode (pre-chill). During prechill, the freezer temperature may be driven below the set point. However, the fresh food temperature will be regulated by the damper. Pre-chill will last for 2 hours. These models do not have a defrost holdoff.
Liner Protection Mode
The liner protection mode will activate if either of the doors have been open for 3 minutes. This mode will start the evaporator fan and close the damper. This mode is controlled by 2 timers. Timer #1 monitors door-open time. A 3-minute door-open count begins when the door is opened. If 3 minutes elapse before the door is closed, the liner protection mode will become active. Once the door is closed, timer #1 resets and liner protection mode goes into standby. In standby, normal fan and damper operations resume and timer #2 begins a 3-minute door-closed count. If 3 minutes elapse without a door opening, liner protection mode will completely deactivate. If a door is opened within the timer #2 door-closed count, the remaining time in the door-closed count will be deducted from the timer #1 door-open count.
Defrost Heater Operation (Adaptive Defrost)
After 2 hours of pre-chill operation, the main control board turns off the compressor, condenser fan, and evaporator fan. During defrost operation, the main control board monitors the evaporator temperature using evaporator thermistor inputs. The thermistor will terminate defrost heater operation in less than 45 minutes. Typical defrost time is 20-30 minutes. Maximum defrost cycle is 45 minutes with heater on, 5 minutes in dwell. The defrost system is protected by a defrost safety thermostat (switch). The thermostat opens when the evaporator temperature raises to 140° F and closes when the evaporator temperature lowers to 110° F.
Dispensing Functions
The water, crushed ice, and cubed ice functions are controlled by the main control board. To select a function, press the appropriate pad on the dispenser. The LED will light to identify the selection. To dispense the selected item, depress the dispenser cradle located in the dispenser recess. The solenoid and linkage assembly will open the ice chute door to dispense the ice. If cubed ice is selected, the crushed ice bypass solenoid will allow cubed ice to bypass the ice crusher. The ice chute door must remain open for 5 second after dispensing ceases. After this 5 second delay, the solenoid and linkage assembly will shut the ice chute door. The dispenser light will come on automatically when the dispenser cradle is depressed and will fade out 5 seconds after it is released.
Dwell Period (Adaptive Defrost)
After defrost heater operation has been terminated by the main control board, a 5-minute dwell period occurs. During this period, the compressor, condenser fan, and the evaporator fan remain off. The remaining frost melting from the evaporator will continue to drip and drain so that prior to the cooling operation, the evaporator will be totally clear of any moisture. After the 5-minute dwell period, the unit goes into post dwell.
Post Dwell (Adaptive Defrost)
The post dwell period is designed to cool the evaporator before circulating air within the refrigerator. This prevents any residual heat on the evaporator from being distributed in the freezer. During this period, the compressor is on and the condenser fan is on, but the evaporator fan is off, and the damper is closed. Post dwell lasts 10 minutes on these models.
Dispenser Light
The LIGHT pad turns the dispenser light on and off. When the light is turned off, it will fade out. The dispenser light will come on automatically when the dispenser cradle is depressed and will fade out 5 seconds after it is released. The LIGHT pad will not turn off the light during dispense.
9
Dispenser Lock
When the dispenser system is locked, no dispenser command will be accepted. This includes the dispenser cradle and will prevent accidental dispensing that may be caused by children or pets. If a pad is pressed with the system locked, it will be acknowledged with 3 pulses of the LOCK LED accompanied by an audible tone. To lock or unlock communication between the dispenser and main control board, press the LOCK pad and hold it for 3 seconds. The LOCK LED will flash while the LOCK pad is pressed. When the communication is locked, the LOCK LED will be illuminated. The status of other functions selected prior to the initiation of the lock feature will be displayed. If the lock is engaged while a mode is active, the LED will remain on until that mode times out. If the lock is engaged when the filter timer expires, the LED will come on but cannot be reset until the lock is turned off. The lock feature will be restored in the event of a power disruption.
Hinge System and Door Closure
Cam with Thimble Screw Cam Riser Hinge Adjustment Pin Hinge
GEA00909
The hinge brackets are not adjustable on the cabinet. The fresh food door can be adjusted up and down by using the hinge adjustment pin (located on the fresh food lower door hinge). The fresh food and freezer lower door hinges are equipped with replaceable cam risers. The cam risers assist in door closure. If the fresh food door is adjusted too high, cam riser will not be engaged, and the fresh food door will not close properly. IMPORTANT: The refrigerator rollers must be adjusted correctly for proper door closure. When the rollers are adjusted correctly, the door should close easily when open approximately 45 degrees (halfway)
Filters
Some models are equipped with a water filter located in the upper right-hand corner of the fresh food compartment. The filter is designed to be used for up to 8 hours of open valve time or 1 year of calendar time. When 90% of filter time (dependant on model) has elapsed (open valve time or calendar time, whichever comes first), the main control board will illuminate the filter reminder LED (amber). When 100% of the filter time has elapsed, the main control board will illuminate the filter reminder LED (red).
10
Airflow (Cabinet Interior)
"Jelly Roll" Condenser
The freezer compartment is designed so that when the evaporator fan is operating, air is drawn into the bottom of the air tunnel and through the evaporator. The cold air is then pushed out into the top of the freezer. The fresh food compartment receives chilled air via an electronic damper positioned at the top, rear of the refrigerator between the freezer compartment and the fresh food compartment. The damper is controlled by the main control board and when open, allows chilled air from the freezer air tunnel to move into the fresh food compartment. Air returns from the fresh food compartment to the freezer compartment via a vent located to the left of the FRESH PRODUCE drawer.
The new NO CLEAN condenser is accessed from the rear and is designed to be tolerant of up to 2 inches of lint. The idea is that the consumer, in normal operating conditions, will never have to clean the condenser. If necessary, only an ordinary appliance brush is used. Air is drawn in from the outside diameter of the condenser and pulled out by the condenser fan. A condenser fan baffle is located at the rear to direct airflow through the condenser. Functionally, the condenser does the same job as previous models. Air is drawn in from front left and rear left and exits out front right side of refrigerator.
11
Main Control Board
COMMUNICATION INPUT/OUTPUT
DAMPER COILS
ENCODER INPUTS
THERMISTOR INPUTS
MODEL SELECT
1 COMM 2 +12V 3 -COM 4 DI 5 DO
10
5
1
1
1
INPUTS
J5
ACCUMULATED FF AND FRZ DOOR OPENINGS (MINUTES)
J4
J3
J1
9
FAN OUTPUTS
COMPRESSOR RUN TIME (MINUTES)
1
DEFROST HEATER ON TIME (MINUTES)
PROCESSING UNIT
OUTPUTS
J6
COOLING
DEFROST
PRE-CHILL
COMP K4 K3
2
1
J2
QC
8
1
COMP
DEFR
LINE
DEFROST
K7 PAN/HTR
L1
K5
CRUSHER
COMMON
WATER
PAN_HTR
AUGER
OCH
DFZ
DFF
N
COMPRESSOR AND DEFROST OUTPUTS DOOR SWITCH INPUTS
12
K1 AUGER
J7
K2 C/CR
K6 WATER
6
General Locator Views
Temperature Controls Freezer Light Switch
Tech Data Sheet Location
Fresh Food Light Switch Damper Fresh Food Thermistor
Evaporator Fan
Evaporator Thermistor
Evaporator
Freezer Thermistor
GEA00914
13
Main Control Board
Condenser Fan
Jelly Roll Condenser Compressor
Water Solenoids
Capacitor
Overload and Relay (under cover)
GEA00917
14
Mechanical Disassembly
Table of Contents
Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Door Handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Doors and Door Hinges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Door Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Fresh Food Door Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Fresh Food Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Freezer Door Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Water Filter Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Drawers and Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Door Shelf Extenders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Freezer Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Icemaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Ice Dispenser Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Evaporator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Defrost Heater and Freezer Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Overtemperature Thermostat and Evaporator Thermistor . . . . . . . . . . . . . . . . 24
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Fresh Food Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Door Dispenser Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Door Dispenser Target Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Ice Crusher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Ice Dispenser Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Ice Cube Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Dispenser Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Main Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Roller Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Water Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Fresh Food Air Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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Door Gasket
The rear flange of the gasket is positioned between the inner and outer door panels. The screws under the gasket flap must be loosened. 1. Remove the door bins. 2. Loosen 40 screws located under the door gasket. 3. Remove the gasket from the interior of the door liner. Note: The back side of the door liner has doublesided tape at the corners.
Doors and Door Hinges
IMPORTANT: The freezer door is not adjustable. The fresh food door can be adjusted up and down to match the height of the freezer door. Adjust the fresh food door up or down using the hinge adjustment pin (located on the fresh food lower door hinge).
Screws
The fresh food and freezer lower door hinges are equipped with replaceable cam risers. Cam risers assist in door closure. When the fresh food door is adjusted too high, the cam riser will not be engaged. If the cam riser is not engaged, the door will not close properly. Refer to the Fresh Food Door Adjustment section in this chapter for more information. IMPORTANT: The refrigerator rollers must be adjusted correctly to ensure proper door closure. Refer to the Roller Assembly section in this chapter for more information.
GEA00866
Door Handles
Door handles are front mounted and secured with Torx-style screws. 1. Remove the handle trim covers by inserting a thin flat-blade screwdriver about 2 in. from the end of top cover trim. Pry up enough to insert your fingers and lift to free trim from 2 plastic locking tabs inserted in rectangle door holes. Reverse to reinstall, taking care to align cover trim correctly. The top and bottom are not interchangeable. 2. Remove 2 T-20 Torx screws from the upper and lower ends of the handle. 3. Remove the handle.
Door Removal
1. Remove the upper hinge cover by removing the Phillips screw. 2. With the door in the closed position, disconnect the wiring harness (freezer side only).
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Cam with Thimble Screw Cam Riser Hinge Adjustment Pin Hinge
GEA00909
3. Remove the base grille. 4. Disconnect the water supply tube. To disconnect the tube, push in the white collar on the quick connector and pull the tube out. 9. Remove the screw, hinge cam, and thimble from the bottom of the door. 10. Fresh Food Door Only: Remove the hinge adjustment pin and cam riser from the lower hinge. 11. Freezer Door Only: Remove the cam riser and washer from the lower hinge. 12. Remove 2 screws and lower hinge from cabinet.
Fresh Food Door Adjustment
IMPORTANT: The refrigerator rollers must be adjusted correctly to ensure proper door closure. Refer to the Roller Assembly section in this chapter for more information. The freezer door is not adjustable. The fresh food door can be adjusted to match the height of the freezer door. 1. Remove the base grille (opening the door makes grille removal easier). 2. Turn the hinge adjustment pin (located on the fresh food lower hinge) clockwise to raise the door and counterclockwise to lower the door.
GEA00869
5. Remove the water tube protection (black collar). 6. Remove 2 upper hinge screws. 7. Lift the upper hinge and move it to the side (the gasket is located under the hinge). CAUTION: Do not side-load hinges. NOTE: Freezer door only - Guide the water line through hinge while lifting the door from hinge. 8. Open the door 90 degrees and lift the door straight up and off the lower hinge.
Control Panel
The control panel, located at the front of the fresh food compartment, contains temperature control encoders for fresh food and freezer sections and the fresh food door light switch. 1. Remove 2 screws located in the bottom of the control panel. Slide the panel down.
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2. Disconnect the connectors for the door light switch and temperature control switches.
Connectors Encoder Board
GEA00870
Freezer Door Light Switch
The freezer door light switch is located on the left of the freezer compartment. 1. Slide a small flat-blade screwdriver under the switch and push the locking tab. Pull out the switch. 2. Disconnect the harness connector and remove the switch.
3. Disconnect the connectors for the light and temperature control encoders. 4. Disconnect the temperature control encoder connector. 5. Remove the mounting nuts for both encoders. Note: Both switches must be replaced because they are mounted on a common circuit board.
Mounting Nuts
GEA00871
6. Disconnect the refrigerator door light switch supply connector. 7. Push the locking tab in and slide the switch out of the panel.
Water Filter Cartridge
Note: The water filter should be replaced every 6 months. Warranty life is 30 days. The water filter cartridge is located in the upper right corner of the fresh food compartment. When the LED illuminates, change the water filter. On those models without the LED, change the filter when the water flow decreases to the dispenser or icemaker. 1. Remove the old cartridge by slowly turning it to the left. Do not pull the cartridge down. A small amount of water may drip when the cartridge is removed.
Fresh Food Light
The lower fresh food light is located under an opaque cover in the lower portion of the fresh food compartment in some models. Note: The upper light cover removal is covered in the previous procedure. 1. Remove the lower light cover by lifting it off the dowels. 2. Remove 2 40-watt appliance light bulbs.
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2. On models without a replacement LED, apply the year and month sticker to the new cartridge. 3. Line up the arrow on the cartridge with the cartridge holder. Place the new cartridge up and inside the holder. Do not push it into the holder. 4. Slowly turn the cartridge to the right until it stops (about 1/2 turn). Do not overtighten. The cartridge will automatically raise itself into position. 5. Run water from the dispenser for 3 minutes (about 1-1/2 gallons) to clear the system and prevent sputtering. 6. On models with the LED, press and hold the RESET WATER FILTER pad on the dispenser. Note: A filter bypass plug must be used if a replacement filter is not available. The dispenser and icemaker will not operate without a filter or the filter bypass plug installed.
The QuickSpace shelf splits in half and slides under itself to allow for storage of tall items on the shelf below. To adjust this shelf: 1. Tilt the shelf up until the tab disengages from the shelf track. 2. Lift the lower tab out of the shelf track. 3. Slide the front half of the shelf under the back half.
GEA00873
Drawers and Bins
Water Filter Cartridge
The refrigerator uses drawers (fresh food) and bins (freezer) to store food. Adjustable humidity drawers allow vegetables to be stored at high humidity or fruits at low humidity. A convertible meat drawer with variable control regulates cold air from the freezer compartment to circulate around the drawer.
GEA00729
1. Pull out the drawer or bin until it reaches the mechanical stops. 2. Lift the drawer or bin up and pull it out of the compartment.
Shelves
The slide-out and Spillproof shelves allow access to items stored behind other items. Spillproof shelves have special edges to help prevent spills from dripping onto lower shelves.
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Freezer Light
The freezer light is attached to the evaporator fan housing. 1. Remove the light cover by lifting it off the tabs. 2. Replace the appliance light bulb.
GEA00874
Icemaker
The icemaker is located in the rear of the freezer compartment. The icemaker must be replaced as a complete unit.
GEA00875
1. Slide out the upper icemaker dispenser tray and drawer.
Door Shelf Extenders
Detachable shelf extenders deepen and enclose fixed door shelves, providing more storage and greater storage flexibility. 1. Lift the shelf extender straight up until it disengages from the locking device. 2. Pull out the shelf extender.
2. Loosen 2 mounting screws.
GEA00876
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Mounting Screws
Ice Dispenser Drive
The ice dispenser drive turns the ice dispenser auger in either crushed or cube mode. 1. Remove 2 Phillips screws from the ice dispenser drive. 2. Slide the dispenser out until the cable connector is visible.
Splash Baffle
3. Disconnect the cable and remove the dispenser drive.
GEA00879
3. Lift up the icemaker and slide it out until the cable connection is exposed. Note: When replacing the icemaker, the fill cup and splash baffle must be reused. 4. Disconnect the cable connector.
2 Screws
GEA00882
Evaporator Fan
The evaporator fan, located in the upper portion of the freezer compartment, circulates cold air through the fresh food and freezer compartments. 1. Remove auger motor housing.
Cable Connector
GEA00880
2. Loosen 4 Phillips screws located in the lower portion of the evaporator fan duct. 3. Lift up the duct and slide it out.
5. Loosen 3 screws on the icemaker bracket. 6. Lift up the bracket and slide it out.
3 Screws
GEA00881
22
4. Remove 4 Phillips screws from the evaporator cover. 5. Remove the evaporator cover. 6. Disconnect the evaporator fan cable connectors and the ground wire. 7. Loosen 2 Phillips screws from the evaporator fan mounting.
Defrost Heater and Freezer Thermistor
The defrost heater warms the evaporator during the defrost mode of operation. The freezer thermistor, located at the bottom left side of the freezer compartment, senses the temperature in the freezer. 1. Complete steps 4 and 5 in the previous procedure. 2. Remove 2 Phillips screws from the defrost heater. 3. Remove the heater.
2 Connectors
2 Screws
2 Screws
GEA00884
8. Pull out the fan and remove the light and defrost heater wiring harness. 9. Remove the fan. 4. Remove the freezer thermistor.
GEA00886
Heater Wiring Harness
Freezer Thermistor
GEA00885
GEA00887
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Overtemperature Thermostat and Evaporator Thermistor
The main control board monitors the resistance of the evaporator thermistor. The main control board will terminate the defrost cycle when a predetermined temperature (60° F) is reached. The over-temperature thermostat is a redundant defrost terminating device. It will also terminate defrost in the event of a failure of the evaporator thermistor. 1. Remove the overtemperature thermostat. 2. Remove the evaporator temperature thermistor.
Door Dispenser Control Panel
The door dispenser control panel allows the consumer to select water, crushed ice, or ice cubes. It is an interface to the main control board.
Evaporator Temperature Thermistor
Over-Temperature Thermistor
1. Use a screwdriver to unlock the tabs at the bottom of the control panel. Slide the bottom out and down. 2. Disconnect the wiring harness connectors.
GEA00888
Note: Inner door panel must be removed to remove recess trim.
Fresh Food Thermistor
The fresh food thermistor, located in the top, left of the fresh food compartment, hidden behind the bin track at the top left, senses the compartment temperature. 1. Disengage the plastic track by sliding upward and remove the housing. 2. Remove the thermistor from the housing.
Door Dispenser Target Switch
When depressed, the door dispenser target switch allows water, ice cubes, or crushed ice to be dispensed. 1. Remove door dispenser control panel (see previous procedure). 2. Remove 4 Phillips screws in the door dispenser housing.
Slide upward to remove
Thermistor Track Cover Screws
GEA00976 GEA00975
3. Slide out the housing and disconnect the target switch and dispenser light connectors.
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3. Turn over the ice bucket and ice dispenser cover. Remove the Phillips screw. 4. Remove the cover. 5. Remove the Phillips screw for the ice cube control linkage and slide the linkage to the rear of the ice bucket.
4. Spread out the locking tabs and remove the switch. 5. Push the chute duct door locking tabs back and raise the assembly above the locking tabs. 6. Push the lower armature locking tabs (under the assembly) back and lift up the entire assembly. 6. Using a pair of pliers, break the tabs off the back cover. 7. Using 2 flat blade screwdrivers, disengage the locking tabs at either side of the ice crusher and remove the assembly.
Ice Crusher
The ice crusher uses a deflector. When the deflector is UP ("Crushed Ice" is selected on the dispenser control panel), the ice crusher operates. When the deflector panel is DOWN ("Cubed Ice" is selected on the dispenser control panel), the deflector is normally up. 1. Remove the ice dispenser tray and assembly (see page 21). 2. Remove 2 Phillips screws from the ice dispenser cover.
Screws
8. Slide the back cover off the auger. The back cover must be replaced because of tabs broken off for disassembly. 9. With a flat-head screwdriver, remove the C-clip from the end of the auger. 10. Remove the auger and ice crusher blade assembly.
Ice Dispenser Drive Motor
The ice dispenser drive motor turns the auger in the crushed or cube mode.
GEA00920
1. Remove the ice dispenser tray and assembly.
25
2. Remove 2 Phillips mounting screws. 3. Pull out the motor. 4. Disconnect the wire connectors. 5. Remove the drive fork and nut.
Solenoid Mounting Screws Motor Mounting Screws
6. Disconnect the wire connectors.
Solenoid
Ground Wire Motor
GEA00695
7. Remove 2 solenoid mounting screws.
GEA00919
8. Slide the solenoid out of the housing.
6. Disconnect the motor wiring connectors.
Evaporator
Air is driven across the evaporator coils to produce cold air for the freezer and fresh food compartments. Evaporator is replace like previous models. 1. Complete steps 4 and 5 in the Evaporator Fan procedure.
Wiring Connectors
GEA00892
Screw
7. Remove 3 motor mounting screws. 8. Remove the motor from the housing.
Ice Cube Solenoid
The ice cube solenoid energizes when the cube mode is selected on the dispenser control panel. 1. Remove the ice dispenser tray and assembly (see page 21). 2. Remove 2 Phillips mounting screws. 3. Pull out the motor. 4. Disconnect the wire connectors. 5. Remove the ground wire to the ice cube solenoid.
GEA00893
2. Remove 3 Phillips screws from the evaporator mounting. 3. Cut the capillary and suction line. 4. Remove the evaporator.
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Screws
4. Remove 2 screws from the condenser fan cover. 5. Pull out the fan until the electrical connector is exposed. 6. Disconnect the electrical connector.
GEA00894
5. With a file, score the capillary tube just above the soldered section. Break off the soldered section of the capillary tube. This helps prevent solder from plugging the tube during assembly. 6. Place a new evaporator into the freezer and insert the suction line and capillary tube into the evaporator. 7. Braze the suction line and capillary tube to the evaporator using silfos.
GEA00725
Electrical Connector
8. Install a replacement dryer. 9. Evacuate and recharge the system using currently accepted procedures.
Dispenser Heater
The dispenser heater ensures that the dispensing recess does not sweat in high humidity. 1. Remove 40 door liner mounting screws. 2. Remove the door liner. Note: The door liner has double-sided tape on the inside corners. 3. Remove the styrofoam dispenser cover. 4. Disconnect the wires and remove the heater.
Dispenser Heater
Condenser Fan
The condenser fan provides forced-draft cooling for the condenser coil. 1. Remove the machine compartment access cover. 2. Remove 1 screw from the condenser fan mounting bracket.
Screw
GEA00981
GEA00895
3. Entire fan motor bracket and shroud assembly can be pulled out.
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Main Control Board
The main control board is located in the back of the unit. This board controls the operation of the unit. 1. Unplug the unit and remove the cover. 2. Disconnect all wiring harness connectors from the main control board. 3. Remove the board by unlocking the four plastic board standoffs located on the board. Note: If standoffs are broken during disassembly, order new parts.
IMPORTANT: To ensure proper door closure, the refrigerator rollers must be adjusted to level the refrigerator. This is different from previous models.
Adjusting Screw
Guide Pin
Roller
GEA00898
Main Processor Card
3. Turn the adjusting screw counterclockwise until it disengages from the assembly. 4. Remove the roller from the slot.
Water Solenoid
When the solenoids receive a signal from the processor, they route water to the water filter, cooler, and icemaker. 1. Remove the access cover.
GEA00896
2. Remove the solenoid bank bracket screw.
Roller Assembly
Adjustable roller assemblies are located at the bottom front of the unit. They are adjustable and replaceable. 1. Unsnap the base grille from the bottom of the unit. 2. Remove the guide pin with a flat-head screwdriver.
Bracket Screw
GEA00899
3. Pull out and disconnect the cable connector.
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Cable Connector
GEA00900
4. Remove 2 Phillips screws from the solenoid connection. 5. Disconnect the water tube and remove the solenoid.
Fresh Food Air Damper
The fresh food air damper is located in the upper left corner of the fresh food compartment. The damper opens to allow cold air to circulate from the freezer to the fresh food compartment. 1. Remove 2 damper cover screws. 2. Remove the damper cover. 3. Using a flat-head screwdriver, remove the damper assembly from the mullion divider until the wire connector is exposed. 4. Disconnect the motor wire connectors. 5. Damper will be replaced as an assembly.
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Notes
30
Notes
31
Diagnostics
Table of Contents
Efficient Use of Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Failure Causes (Table 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Main Control Board (Low-Voltage Side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Main Control Board (120 VAC Side). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Main Control Board Locator Table (Low-Voltage Side) . . . . . . . . . . . . . . . . . . . 36 Main Control Board Locator Table (120 VAC Side) . . . . . . . . . . . . . . . . . . . . . . 38 Fresh Food Warm - Freezer Warm (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . 39 Freezer Warm - Fresh Food Normal (Diagnostic Chart) . . . . . . . . . . . . . . . . . . 40 Fresh Food Warm - Freezer Normal (Diagnostic Chart) . . . . . . . . . . . . . . . . . . 41 Fresh Food Too Cold - Freezer Normal (Diagnostic Chart) . . . . . . . . . . . . . . . 42 Refrigerator Dead - No Sound, No Cooling (Diagnostic Chart) . . . . . . . . . . . . 43 Evaporator Fan Not Running (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . . . . 44 Condenser Fan Not Running (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . . . . . 45 Damper Door Not Operating (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . . . . . 46 Compressor Not Running (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Heavy Frost On Evaporator (Diagnostic Chart) . . . . . . . . . . . . . . . . . . . . . . . . . 48 Thermistor Values (Table 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Efficient Use of Diagnostics
For most efficient use of the diagnostics, find the appropriate diagnostic chart and proceed as directed in the chart. When directed to take a thermistor reading, refer to Table 2, Thermistor Values.
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Table 1. Failure Causes Freezer Compartment
High-resistance freezer thermistor Low-resistance evaporator thermistor Condensor fan failure Evaporator fan failure Defrost heater stuck on
Fresh Food Compartment
High-resistance fresh food compar tment thermistor Damper closed Evaporator fan failure Door switch failure
Above 15
Fahrenheit
Door switch failure Main control board faulty Harness faulty Dispenser flap open Door gasket leak Door open Sealed system failure
Above 50
Fahrenheit
Main control board faulty Harness faulty Door gasket leak Door open
Cycle Normal
(between 14 and -14 Fahrenheit) Damper stuck closed Low resistance in freezer thermistor
Cycle Normal
(between 49 and 33 Fahrenheit) Damper stuck open Low-resistance fresh food compar tment thermistor
Below -15
Fahrneheit
Main control board faulty Harness faulty
Below 32
Fahrenheit
Main control board faulty Ambient temperature below 60 Harness faulty
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Main Control Board (Low-Voltage Side) (Sample only, check schematic shipped with product)
1 - Tan 2 - 13VDC Red 3 - Blk-DC Common 4 - Violet 5 - Wht 1 - Blu / Yel 2 - Wht / Brn 3 - Red / Blk 4 - Yel 1 - Not Used 2 - Yel / Blu Band 3 - Wht / Blu Band 4 - Brn 5 - 5VDC Blu / Wht
J4
J1 PERSONALITY PIN - NONE - 20 Cu. Ft. - Pin 8 - 22 Cu. Ft. - Pin 9 - 25 Cu. Ft.
J3
COMMUNICATION INPUT/OUTPUT
DAMPER COILS
ENCODER INPUTS
THERMISTOR INPUTS
MODEL SELECT
1 COMM 2 +12V 3 -COM 4 DI 5 DO
10
5
1
1
1
INPUTS
J5
ACCUMULATED FF AND FRZ DOOR OPENINGS (MINUTES)
J4
J3
J1
9
FAN OUTPUTS
COMPRESSOR RUN TIME (MINUTES)
1
DEFROST HEATER ON TIME (MINUTES)
PROCESSING UNIT
J2
8 - Red-13VDC 7 - Not Used 6 - Not Used 5 - Yel 4 - Yel / Blk 3 - Wht-DC Common 2 - Not Used 1 - Blu
J2
8
1
GEA00904
34
6
Main Control Board (120 VAC Side)
PROCESSING UNIT
OUTPUTS
J6 DEFROST
2
COOLING
PRE-CHILL
COMP K4 K3
1
QC
COMP
DEFR
LINE
DEFROST
K7 PAN/HTR
L1
K5
CRUSHER
COMMON
WATER
PAN_HTR
AUGER
OCH
DFZ
DFF
N
COMPRESSOR AND DEFROST OUTPUTS DOOR SWITCH INPUTS
J7
1 - Blk / Wht 2 - Violet / Blk 3 - Yel 4 - Gry 5 - Not Used 6 - Violet 7 - Red 8 - Blk 9 - Orn
K1 AUGER
J7
K2 C/CR
K6 WATER
GEA00905
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Main Control Board Locator Table (Low-Voltage Side) Connector J1 J1 J1 J1 J1 J2 J2 J2 Pin 1 2 3 4 5 1 2 3 Wire Color Not used Yellow/Blue Band White/Blue Band Brown 5 VDC Blue/White Blue Not used White-DC common Component Termination Not used Fresh food thermistor #1 Freezer thermistor Evaporator thermistor Thermistor supply voltage (5 VDC) Evaporator fan tachometer Not used Fan common Pin-to-Pin Voltage Reading Not used J1 pin 2 to pin 5 = 2.8 to 3.5 VDC J1 pin 3 to pin 5 = 2.8 to 3.5 VDC J1 pin 4 to pin 5 = 2.8 to 3.5 VDC J1 pin 5 to J4 pin 3 = 5 VDC J2 pin 1 to pin 3 = 6.3 VDC Not used J2 pin 3 to pin 8 = 12 VDC J2 pin 4 to pin 3 = 12.4 VDC (high speed), 8 VDC (low speed) J2 pin 5 to pin 8 = 13.4 VDC (condenser fan is single speed) Not used Not used J2 pin 8 to pin 6 = 13.4 VDC
J2
4
Yellow/Black
Evaporator fan
J2
5
Yellow
Condenser fan
J2 J2 J2
6 7 8
Not used Not used Red-13 VDC
Not used Not used Fan supply voltage
Continued on next page.
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Main Control Board Locator Table (Low-Voltage Side) Connector J3 J3 J3 J3 Pin 1 2 3 4 Wire Color Blue/Yellow White/Brown Red/Black Yellow Component Termination Damper Damper Damper Damper Dispenser board common transmit/receive Dispenser board common 13 VDC Dispenser board common ground Dispenser board input 1 Dispenser board input 2 Continued on next page. Pin-to-Pin Voltage Reading J3 pin 1 to J4 pin 3 = Traveling Voltage 6.0 VDC J3 pin 2 to J4 pin 3 = Traveling Voltage 6.0 VDC J3 pin 3 to J4 pin 3 = Traveling Voltage 6.0 VDC J3 pin 4 to J4 pin 3 = Traveling Voltage 6.0 VDC See schematic
J4
1
Tan
J4
2
Red
See schematic
J4 J4 J4
3 4 5
Black-DC common Violet White
See schematic See schematic See schematic
37
Main Control Board Locator Table (120-VAC Side) Connector J7 J7 J7 J7 J7 J7 J7 Pin 1 2 3 4 5 6 7 8 9 Wire Color Black/White Violet/Black Yellow Gray Not used Violet Red Black Orange Component Termination Auger motor Cube solenoid Water valve Auger motor interlock Not used Fresh food door light switch feedback Pin-to-Pin Voltage Reading J7 pin 1 to J7 pin 9 = 120 VAC* J7 pin 2 to J7 pin 9 = 120 VAC* J7 pin 3 to J7 pin 9 = 120 VAC* J7 pin 4 to J7 pin 9 = 120 VAC (freezer door shut) Not used J7 pin 6 to J7 pin 9 = 120 VAC (fresh food door open)
Freezer door light switch J7 pin 7 to J7 pin 9 = 120 VAC feedback (freezer door open) Not used Neutral Not used Neutral
J7 J7
* When activated
38
Fresh Food Warm - Freezer Warm
Basic refrigerator checks: Door gasket seal OK? Door switch - light turning off with door closed? Dispenser duct door closing properly? Yes
No
Repair as necessary
Is the condenser fan running?
No
Go to Condenser Fan Not Running Flowchart page 45
Yes Go to Evaporator Fan Not Running Flowchart page 44
Is the evaporator fan running?
No
Yes Go to Compressor Not Running Flowchart page 47
Is the compressor running?
No
Yes
Is the airflow within the freezer normal?
No
Look for blockage at vents or heavy frost on evaporator cover Heavy frost
Blockage
Remove blockage from evaporator cover vent area
Yes
Go to Heavy Frost on Evaporator Flowchart page 48 Check wiring connections If wiring is OK, replace thermistor
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range? Yes Check sealed system Does system check okay?
No
No
Repair sealed system
Yes
Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem
39
Freezer Warm - Fresh Food Normal
Check control settings and temperatures Food at a setting of 5 and 5 with no door openings for 12 hours should be: Fresh food 34 F to 42 F Freezer -8 F to +6 F Control settings OK
Control settings require adjustment
Adjust settings and allow 24 hrs to stabilize
Basic refrigerator checks: Door gasket seal OK? Door switch - light turning off with door closed? Dispenser duct door closing properly?
No
Repair as necessary
Yes Go to Evaporator Fan Not Running Flowchart page 44
Is the evaporator fan running?
No
Yes Go to Condenser Fan Not Running Flowchart page 45
Is the condenser fan running?
No
Yes Look for blockage at vents or heavy frost on evaporator cover Remove blockage from evaporator cover vent area
Is the airflow within the freezer normal?
No
Blockage
Yes
Heavy frost
Go to Heavy Frost on Evaporator Flowchart page 48
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range? Yes Check sealed system Does system check ok?
No
Check wiring connections If wiring is OK, replace thermistor
No
Repair sealed system
Yes
Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem
40
Fresh Food Warm - Freezer Normal
Check control settings and temperatures Food at a setting of 5 and 5 with no door openings for 12 hours should be: Fresh food 34 F to 42 F Freezer -8 F to +6 F Control settings OK
Control settings require adjustment
Adjust settings and allow 24 hrs to stabilize
Basic refrigerator checks: Door gasket seal OK? Door switch - light turning off with door closed?
No
Repair as necessary
Yes
Is the evaporator fan running?
No
Go to Evaporator Fan Not Running Flowchart page 44
Yes
Unplug refrigerator Set temperature controls to 5 and 5. Reconnect power. Does damper door open after immediately reconnecting power? Yes Is the airflow within the fresh food normal?
No
Go to Damper Door Not Operating Flowchart page 46
No
Look for blockage at vents or heavy frost on evaporator cover
Blockage
Remove blockage from evaporator cover vent area
Yes
Heavy frost
Go to Heavy Frost on Evaporator Flowchart page 48
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range? Yes Check sealed system Does system check ok?
No
Check wiring connections If wiring is OK, replace thermistor
No
Repair sealed system
Yes
Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem
41
Fresh Food Too Cold - Freezer Normal
Check control settings and temperatures Food at a setting of 5 and 5 with no door openings for 12 hours should be: Fresh food 34 F to 42 F Freezer -8 F to +6 F
Control settings require adjustment
Adjust settings and allow 24 hours to stabilize
Control settings OK
Low ambient? Is the room temperature above 55 F?
No
Advise consumer of refrigerator installation requirements
Yes Go to Damper Not Operating Flowchart page 46 Damper should be closed when FF temperatures are too cold
Is the damper closed?
No
Yes
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range?
No
Check wiring connections If wiring is OK, replace thermistor
Yes
Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem
42
Refrigerator Dead, No Sound, No Cooling
Are the interior lights on?
No
Check house supply voltage. Do you have 120VAC?
No
House wiring problem
Yes
Check for 120VAC at 6 pin connector at rear of unit. Do you have 120VAC? Yes Yes
No
Repair or replace power cord
Repair wiring connections at 6 pin connector
If dispenser model, does dispenser operate? (If non-dispenser, follow No statement path first)
No
Unplug J2 connector from main control board. Check for 12 VDC at control board pins J2-3 to J2-8. Do you have voltage?
No
Unplug J4 connector from main control board. Check for 12 VDC at control board pins J4-2 to J4-3. Do you have voltage? Yes Short in dispenser control circuit. Repair short or replace dispenser board.
No
Replace main control board
Yes Short in fan motor circuit Go to fan flowcharts
NOTE: check all fan motors circuit for shorts. If short is detected, repair short or replace fan motor. Failure to replace shorted component will damage the new control board upon installation
Yes
Unplug encoder (temperature control) harness. Does the refrigerator start once the harness is unplugged?
No
Verify thermistors are within proper range using temperature resistance chart on page 49. Is the resistance within range?
No
Check wiring connections If wiring is OK, replace thermistor
Yes
Yes
Replace encoder board (temperature control)
Replace main control board
43
Evaporator Fan Not Running
Always check fan for obstruction first.
Unplug refrigerator to reset main control board. Warm freezer thermistor to 70 F and set temperature controls to 5 and 5. Reconnect power.
At the evaporator fan connector, check for 13VDC from the red to white wire and 8-13VDC from the white to yellow wire. Is the voltage correct for both?
Yes
Replace evaporator fan motor
No
Unplug J2 connector on the main control board. Check for 13VDC between pins J2-3 and J2-8 and 8-13VDC between pins J2-3 and J2-4. Is the voltage correct for both?
Yes
Repair wiring between main control board and evaporator fan motor
No
Replace main control board
NOTE: When no voltage at main control board, make certain to check for shorted fan motor (less than 1K ohm between white to red or white to yellow). A shorted fan motor will damage the replacement main board.
44
Condenser Fan Not Running
Always check fan for obstruction first.
Unplug refrigerator to reset main control board. Warm freezer thermistor to 70 F and set temperature controls to 5 and 5. Reconnect power.
At the condenser fan connector, check for 13VDC from the red to white wire and 11-13VDC from the white to yellow wire. Is the voltage correct for both?
Yes
Replace condenser fan motor
No
Unplug J2 connector on the main control board. Check for 13VDC between pins J2-3 and J2-5 and 11-13VDC between pins J2-3 and J2-8. Is the voltage correct for both?
Yes
Repair wiring between main control board and condenser fan motor
No
Replace main control board
NOTE: When no voltage at main control board, make certain to check for shorted fan motor (less than 1K ohm between white to red or white to yellow). A shorted fan motor will damage the replacement main board.
45
Damper Door Not Operating
Push on damper door to check manual movement. Is the damper door stuck?
Yes
Damper jammed Remove blockage or replace damper
No
Push damper halfway closed. Unplug refrigerator to reset main control board. Set temperature controls to 5 and 5 Reconnect power.
Does damper door move after immediately reconnecting power? (you have 10 seconds to check)
Yes
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range?
Yes
Replace main control board
No
No
Check wiring connections If wiring is OK, replace thermistor
Unplug harness connector at damper. Measure resistance between the yellow and red/black wires and between the white/brown and blue/yellow wires. Do you measure approximately 420 ohms for both readings?
Yes
Unplug J3 connector from main control board. Unplug refrigerator to reset, then reconnect power. Do you have 6VDC between pins J4-3 (common) and each of the pins J3-1, J3-2, J3-3 and J3-4? (you have 10 seconds to check)
Yes
Look for wiring problem between main control board and damper. If wiring is OK, replace damper.
No
No
Replace damper
Replace main control board
46
Compressor Not Running
Unplug refrigerator Warm freezer thermistor to 70 F Connect power and set temperature controls to 5 and 5.
Is the compressor running?
Yes
Adjust settings and allow 24 hours to stabilize
No
Check for 120VAC at connector J7-9 orange wire to TERMINAL-J8 black wire. Do you have 120VAC?
Yes
Direct test the compressor. Did it start?
No
Replace compressor
No
Yes
Replace main board
Check wiring to compressor, overload & relay
47
Heavy Frost on Evaporator
First, always check door ajar, customer usage - numerous door openings, etc...
Unplug refrigerator from power. Unplug blue connector from main board. Measure between blue wire on connector and neutral orange wire on main board J7, pin 9. Is there approximately 22?
Yes
No
Check wiring harness Check defrost heater Check defros safety thermostat
Verify thermistors are within proper range using temperature resistance chart on page 49 Is the resistance within range?
Yes
Replace main board
No
Check wiring connections If wiring is OK, replace thermistor
48
Table 2. Thermistor Values
Temperature Degrees (C) Temperature Degrees (F) Resistance in KiloOhms
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86 95 104 113 122 13 1 140
166.8 k 120.5 k 88 k 65 k 48.4 k 36.4 k 27.6 k 21 k 16.3 k 12.7 k 10 k 7.8 k 6.2 k 5 k 4 k 3.2 k 2.6 k 2.2 k 1.8 k 1.5 k 1.2 k
NOTE: The thermistor's resistance has a negative coefficient. As the temperature increases, the thermistor's resistance decreases.
49
Component and Connector Locator Views
Evaporator Fan Light
Evaporator Thermistor
Defrost Thermostat
Evaporator
Defrost Heater
Freezer Thermistor
GEA00916
50
Damper
Fresh Food Light Switch
Fresh Food Thermistor
Fresh Food Lights
GEA00913
51
Main Control Board
Condenser Fan
Jelly Roll Condenser Compressor
Water Solenoids
Capacitor
Overload and Relay (under cover)
GEA00917
52
Main Control Board (120 VAC Side)
PROCESSING UNIT
OUTPUTS
J6 DEFROST
2
COOLING
PRE-CHILL
COMP K4 K3
1
QC
COMP
DEFR
LINE
DEFROST
K7 PAN/HTR
L1
K5
CRUSHER
COMMON
WATER
PAN_HTR
AUGER
OCH
DFZ
DFF
N
COMPRESSOR AND DEFROST OUTPUTS DOOR SWITCH INPUTS
J7
1 - Blk / Wht 2 - Violet / Blk 3 - Yel 4 - Gry 5 - Not Used 6 - Violet 7 - Red 8 - Blk 9 - Orn
K1 AUGER
J7
K2 C/CR
K6 WATER
GEA00905
NOTE: Refer to the Main Control Board Locator Tables in the Diagnostics chapter for more information.
53
Schematics
FREEZER DOOR
DUCT SOLENOID R=13
BLACK BLACK
DC
EMI FILTER (WHEN APPLICABLE) R = 48 HTR 1
BLACK BLACK
4 Test Point LOW VOLTAGE DC 3 2 1
J4-2 J4-1
AC LINE VOLTAGE BROWN ORANGE R 3.37
J-8 ORANGE
J4-2 J4-1
J1-1
J1-2
TAN RED BLACK VIOLET WHITE B/W
TAN RED BLACK VIOLET WHITE
TAN +13V RED BLACK (Comm) VIOLET WHITE
(SEE INDIVIDUAL DIAGRAM)
BLACK OVERLOAD S 4.64 COMPRESSOR R=18 RELAY
ORANGE WHITE CAPACITOR
DISPENSER BOARD
YELLOW RED
YELLOW RED
J2-3 J2-2
J4-3
J4-4