Diagnosis & Troubleshooting; Diagnostic Codes - Maytag MDG25PN Service Manual

DiaGnOSiS & TrOuBLESHOOTinG
PrOPEr EarTHinG OF
240 vOLT WaLL OuTLETS
All dryers that plug into a wall outlet have
a power cord supplied for the proper
configuration. All dryers must be plugged into
an earthed outlet.

DiaGnOSTic cODES

If the set-up mode is entered and one of
the following has previously occurred, the
appropriate diagnostic code will be in the
display.
Models 22 and 25.
Models MDE22PR, MDG22PR, MDE22PD, and MDG22PD
ACCU
TRAC ® DRYER
INDICATION/ DISPLAY/
INDICATION AFFICHAGE
ACCU DE LA
TRAC SÉCHEUSE
®
Blocked coin 1 or coin drop UI control circuit failure
Voltage detected below 90 VAC for 8 seconds.
Blocked coin 2 or coin drop UI control circuit failure
Not receiving communications from installed debit
card reader in Enhanced (Generation 2) Debit mode.
Dryer motor control circuit error.
The control doesn't know if the motor relay is bad (stuck
on), the motor relay drive circuit is bad (shorted), causing
the motor relay to stay on, or the motor relay feedback
circuit is bad.
Exhaust thermistor open, temperature drops below 18°F
(>50 k ) for 1 minute in Run mode, or immediately in
Factory Diagnostic Mode.
Exhaust thermistor shorted, temperature above 250°F
(<500 ) for 1 minute in Run mode, or immediately in
Factory Diagnostic Mode.
UI is not receiving communications from CCU
CCU is not receiving communications from UI
UI Microprocessor is not able to read or verify EEPROM
UI EEPROM memory is a CRC failure
6-1
EXPLANATION