Maytag MDG25PN Service Manual page 5

cOMPOnEnT TESTinG ........................................................................................................... 5-1
Gas valve coils .................................................................................................................. 5-1
Burner ignitor .................................................................................................................... 5-2
Manometers ...................................................................................................................... 5-2
Flame sensor .................................................................................................................... 5-4
High temp thermostat & High temp cutout (gas dryers) .................................................... 5-4
Heating element (electric dryers) ...................................................................................... 5-5
High temp cutout ............................................................................................................... 5-6
(electric dryers) ................................................................................................................. 5-6
Centrifugal switch ............................................................................................................. 5-7
Drive motor ....................................................................................................................... 5-8
Thermistor ......................................................................................................................... 5-9
Thermal fuse ..................................................................................................................... 5-10
User interface membrane switch ...................................................................................... 5-11
UIC transformer ................................................................................................................ 5-12
Step-down transformer - Model 22 dryers ........................................................................ 5-13
Auto transformer - gas dryers ........................................................................................... 5-14
Coin drop acceptor ........................................................................................................... 5-15
DiaGnOSiS & TrOuBLESHOOTinG ..................................................................................... 6-1
Proper Earthing of 240 volt wall outlets ............................................................................ 6-1
Diagnostic codes .............................................................................................................. 6-1
Troubleshooting guide ...................................................................................................... 6-2
Troubleshooting tests ........................................................................................................ 6-3
Troubleshooting dryer operation ....................................................................................... 6-11
Troubleshooting dryer results ........................................................................................... 6-13
Diagnostic mode ............................................................................................................... 6-15
Dryer help mode ............................................................................................................... 6-15
Central control unit (CCU) connections ............................................................................ 6-16
User interface control (UIC) connections .......................................................................... 6-16
WirinG DiaGraMS ................................................................................................................. 7-1
Model 22 PD electric models ............................................................................................ 7-1
Model 22 PD gas models .................................................................................................. 7-1
Model 22 PN electric models ............................................................................................ 7-2
Model 22 PN gas models .................................................................................................. 7-2
Model 25 PD gas models .................................................................................................. 7-3
Model 25 PD electric models ............................................................................................ 7-3
Model 25 PN gas models .................................................................................................. 7-4
Model 25 PN electric models ............................................................................................ 7-4
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