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4. TROUBLESHOOTING
4-1. Function for failure diagnosis 41
4-1-1) TEST FUNCTION 41
4-1-2) COMMUNICATION ERROR DISPLAY FUNCTION 43
4-1-3) SELF DIAGNOSIS FUNCTION 43
4-1-4) LOAD STATUS DISPLAY FUNCTION 46
4-1-5) EXHIBITION MODE 48
4-1-6) OPTION SETTING FUNCTION 48
4-1-7) Option TABLE 51
4-2. Trouble-Shooting (Flow Chart) 53
4-2-1) WHEN SELF-DIAGNOSIS ERROR OCCURS 54
4-2-2) WHEN THE FAN DOES NOW OPERATE (F, R, C - FAN) 63
4-2-3) WHEN ICE MAKER (R) DOES NOT OPERATE 64
4-2-4) WHEN DEFROST DOES NOT WORK (F, R DEF HEATER) 65
4-2-5) WHEN POWER IS NOT APPLIED 66
4-2-6) WHEN COMPRESSOR DOES NOT RUN (INVERTER COMP) 67
4-2-7) WHEN THE UNIT KEEPS ALARMING (BUZZER SOUND) 69
4-2-8) WHEN THE PANEL PCB DOES NOT OPERATE NORMALLY 71
4-2-9) WHEN THE PANTRY PANEL PCB DOES NOT OPERATE NORMALLY 72
4-2-10) WHEN THE ROOM LAMP DOES NOT LIGHT UP 73
4-2-11) WHEN WATER DOES NOT SUPPLY AT ICE MAKER 75
4-2-12) WHEN WATER IS NOT SUPPLIED (RF266 OPTION) 76
4-2-13) WHEN THERE IS NO POWER AT INVERTER PCB 77
4-2-14) TROUBLESHOOTING BASED ON LED BLINKING FREQUENCY 78
40
TROUBLESHOOTING
4-1) Check-List before Trouble-Shooting
4-1-1. Test Function (Forced Operation / Forced Defrost Function)
When pressing the Power Freeze and Fridge buttons for 8 seconds at the same time, it will
shift to the Test Mode and the entire Display Panel will go off.
Each time when any one of the buttons on the Display Panel is pressed within 15 seconds
after shifting to the Test Mode, its operation will be shifted in the order of Forced Operation 1
(FF 1) Forced Operation 2 (FF 2) Forced Operation 3 (FF 3) Forced F/R Defrost (Fd)
Cancellation (Display all off).
When there is no button pressed within 15 seconds after being shifted to the Test Mode, the
Test Mode will be cancelled and it will shift to the normal display mode.
To cancel the Test Mode while it is performing the Test Mode, it is recommended to plug out
and plug in the unit.
1) Forced Operation
Press the Power Freeze and Fridge buttons for 8 seconds at the same,
The entire Display will be off, and when pressing any one of the buttons, it will
shift to the Test Mode (Forced Operation).
1-1) When any one of the buttons is pressed once at the Test Mode, "FF 1" will light up on
the Display which indicates Forced Operation #1. And, it will send out "Beeping" alarms.
1-2) Each time when any one of the buttons is pressed at the Forced Operation #1, "FF 2"
and "FF 3" will be followed, each indicating the Forced Operation #2 and #3. And, it is to
run the compressor in different RPM.
Forced Operation #1
Forced Operation #2
Forced Operation #3
41
TROUBLESHOOTING
1-3) When the Forced Operation is selected, the compressor starts without a 7-minute delay
in any operation mode. At this time, when it is in a Defrost mode, it stops defrosting and
the Forced Operation begins.
(If the Forced Operation begins as soon as the Compressor stops, it may cause the
overload. So, take care when entering into the Forced Operation.)
1-4) When the Forced Operation is selected, the Compressor and the F-Fan operates for 24
hours without stopping and the Fridge compartment operates based on the set
temperature.
1-5) When the Forced Operation is selected, the Freezer compartment will be set to
-8 (-22 ), and the Fridge compartment will be set to 32 (1 ) automatically.
1-6) During the Forced Operation, the Power Cool function does not work.
When the Power Cool function is selected, its electric icon automatically goes off in 10
seconds.
1-7) To cancel the Forced Operation in the middle of the Test function, turn off the power and
turn it on again, or select the Test Cancellation mode.
1-8) The alarm sound during the Forced Operation (0.25 sec On and 0.75 sec Off) keeps on
until the Forced Operation completes and there is no cancellation function.
2) Forced Defrost (R,F) Function
2-1) When any one of the buttons is pressed once more at the Forced Operation (FF 3), "Fd"
lights up on the Display Panel and the Forced Operation is cancelled and the Fridge
and the Freezer compartments start defrosting.
2-2) At this time, it does "Beeping