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WHIRLPOOL CONSUMER SERVICES Model 6ALSC8255JQ0 October 2000 WHIRLPOOL AUSTRALASIA CONSUMER SERVICES SERVICE MANUAL TOP LOAD WASHING MACHINE Model 6ALSC8255JQ0 Copyright © 2000 Whirlpool (Australia) Pty. Limited All rights strictly reserved. Reproduction or issue to third parties in any form whatsoever is not permitted without written authority of Whirlpool (Australia) Pty. Limited Whirlpool is a registered trademark of Whirlpool U.S.A. This documentation is intended only for qualified technicians who possess the required qualifications and are aware of the regulatory requirements applicable to servicing electrical appliances. Whirlpool (Australia) Pty Limited A. B. N. 28 003 578 023 Part No. SM2059 WHIRLPOOL CONSUMER SERVICES Model 6ALSC8255JQ0 Page 2 of 23 CONTENTS Page AUTOMATIC (ELECTRONIC) TEMPERATURE CONTROL SERVICING THE ATC COMPONENTS TESTING AND CHECKING ATC SYSTEM TEST PROCEDURE THERMISTOR RESISTANCE CHART WATER LEVEL SWITCH TOP AND CABINET PARTS CONTROLS AND REAR PANEL PARTS AGITATOR, BASKET AND TUB PARTS BRAKE, CLUTCH, GEARCASE, MOTOR AND PUMP PARTS MACHINE BASE PARTS WIRING HARNESS PARTS BRAKE AND DRIVE TUBE PARTS GEARCASE PARTS WATER SYSTEM PARTS MISCELLANEOUS PARTS OPTIONAL PARTS (NOT INCLUDED) 3-4 5 5 6 7 7 8-9 10 - 11 12 - 13 14 16 - 17 18 - 19 20 21 22 22 23 WHIRLPOOL CONSUMER SERVICES Model 6ALSC8255JQ0 Page 3 of 23 AUTOMATIC (ELECTRONIC) TEMPERATURE CONTROL - ATC (ETC) The ATC system controls the incoming water supply to provide an accurate setting for the water temperature in the washing machine tub. The ATC system uses a thermistor located in the water supply tubing between the water inlet valves and the and the vacuum break (See Figure 1). The thermistor senses the incoming water temperature and provides input to the ATC control board. The ATC control board uses the input from the thermistor to cycle the hot and cold water solenoids on the water inlet valves to achieve the desired water temperature. A triac located on the control board, cycles the hot and cold water solenoids through the water temperature switch (See Figure 2). Figure 2 The ATC system will provide 24°C ± 3°C For the COLD setting and 38°C ± 5°C For the WARM setting. WHIRLPOOL CONSUMER SERVICES Model 6ALSC8255JQ0 Page 4 of 23 With the temperature selector switch set to COLD, the cold water solenoid energised for 100% of the time and the hot water solenoid is cycled on and off (See Figure 3). With the temperature selector switch set to WARM, the hot water solenoid energised for 100% of the time and the cold water solenoid is cycled on and off (See Figure 4). Note : During the warm water fill, both solenoids are energised for 55 seconds. After 55 seconds, the hot water inlet valve stays on and the cold water inlet valve cycles. The ATC is only active during the wash fill, it has no effect on the rinse water temperature. WHIRLPOOL CONSUMER SERVICES SERVICING THE ATC COMPONENTS Model 6ALSC8255JQ0 Page 5 of 23 1. To remove the ATC Control Board