Whirlpool CHW9050 Service Manual page 5

TABLE OF CONTENTS - CONTINUED
COMPONENT TESTING ........................................................................................................... 5-1
Inlet valve solenoids ......................................................................................................... 5-1
Pressure switch ................................................................................................................ 5-2
RFI line filter ...................................................................................................................... 5-3
RFI line filter polarity test .................................................................................................. 5-4
Door lock assembly .......................................................................................................... 5-5
Drain pump motor ............................................................................................................. 5-6
Temperature sensor .......................................................................................................... 5-7
Drive motor ....................................................................................................................... 5-8
Ground switch ................................................................................................................... 5-8
User interface membrane switch ...................................................................................... 5-9
Coin slide switch ............................................................................................................... 5-10
Coin drop acceptor ........................................................................................................... 5-11
Transformer ...................................................................................................................... 5-12
DIAGNOSIS & TROUBLESHOOTING ..................................................................................... 6-1
Washer diagnostic mode .................................................................................................. 6-1
Failure / error display codes ............................................................................................. 6-2
Diagnostic test .................................................................................................................. 6-6
Code display ..................................................................................................................... 6-6
Flashing mode .................................................................................................................. 6-7
Special cycle mode ........................................................................................................... 6-7
Quick overview test ........................................................................................................... 6-8
Manual overview test ........................................................................................................ 6-9
Diagnostic test quick guide ............................................................................................... 6-10
Help mode ........................................................................................................................ 6-10
Button functions in help mode table .................................................................................. 6-11
Help mode symbols and elements .................................................................................... 6-11
Help codes ........................................................................................................................ 6-12
Help mode submenu ......................................................................................................... 6-12
Drive motor ohm test ........................................................................................................ 6-13
Pump motor continuity test ............................................................................................... 6-13
Transformer ohm test ........................................................................................................ 6-13
Water temperature sensor ................................................................................................ 6-13
CCU wire harness connector table ................................................................................... 6-14
Manually unlocking the door latch .................................................................................... 6-15
Manually unlatching tripped door latch ............................................................................. 6-15
Washer care ...................................................................................................................... 6-15
Washer clean-out cycle procedure ................................................................................... 6-16
Troubleshooting guide ...................................................................................................... 6-17
WIRING DIAGRAM ................................................................................................................... 7-1
ALPHABETICAL COMPONENT INDEx .................................................................................. 8-1
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