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COMPONENT TESTING ........................................................................................................... 4-1
Water inlet valve testing & repairing ................................................................................. 4-1
Inlet valve-stem assembly parts ....................................................................................... 4-2
Door lock component testing from door lock & harness plug ........................................... 4-3
Contactor testing ............................................................................................................... 4-4
Inverter testing .................................................................................................................. 4-6
Inverter drive chart ............................................................................................................ 4-7
Motor winding test ............................................................................................................. 4-8
Other component resistance chart .................................................................................... 4-8
Door lock component testing from control board .............................................................. 4-9
Main control board testing ................................................................................................ 4-10
PD keypad testing ............................................................................................................. 4-11
PN keypad testing ............................................................................................................. 4-12
Isolating transformer testing ............................................................................................. 4-13
Toroidal transformer testing - 120VAC models ................................................................. 4-13
Temperature sensor testing .............................................................................................. 4-14
DIAGNOSIS AND TROUBLESHOOTING ................................................................................ 5-1
Door will not unlock ........................................................................................................... 5-1
Error message displayed .................................................................................................. 5-1
How to handle fault messages .......................................................................................... 5-2
Fault code overview .......................................................................................................... 5-4
Diagnostic program ........................................................................................................... 5-6
BASIC diagnostic wash program ...................................................................................... 5-7
WIRING DIAGRAMS ................................................................................................................. 6-1
Wiring diagram - MXR40 - 65 ........................................................................................... 6-1
Wiring diagram - MXR20 - 30 ........................................................................................... 6-2
ALPHABETICAL COMPONENT INDEX .................................................................................. 7-1
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