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Diagnostic Codes
If the setup mode is entered and one of the following has occurred, the appropriate diagnostic code will be in the display.
Stacked Dryers
d1
Lower dryer error is flagged if there is a call for heat but the dryer's temperature does not increase 1 °F (minimum) within 40
seconds (cycles disabled on lower dryer until diagnostic code is manually cleared).
d2
Lower dryer thermistor circuit error on control board (cycles disabled on lower dryer until diagnostic code is manually cleared).
d3
Lower dryer temperature too high (cycles disabled on lower dryer until diagnostic code is manually cleared).
d4
Lower dryer motor control circuit error (cycles disabled on lower dryer until diagnostic code is manually cleared).
d5
Blocked coin 1 or coin drop control circuit failure (coin recognition and price display disabled while blockage persists).
d6
Coin 1 sensor failed or missing.
Non-volatile memory failure, caused by either a write failure or detecting corrupt data.
d7
d9
Voltage detected below 90 vac for 8 seconds.
d12
Lower dryer motor sense circuit error (cycles disabled on lower dryer until diagnostic code is manually cleared).
d13
Blocked coin 2 or coin drop control circuit failure (coin recognition and price display disabled while blockage persists).
Upper dryer motor sense circuit error (cycles disabled on upper dryer until diagnostic code is manually cleared).
d14
d17
Upper dryer error is flagged if there is a call for heat but the dryer's temperature does not increase 1°F (minimum) within
40 seconds (cycles disabled on upper dryer until diagnostic code is manually cleared).
d18
Upper dryer thermistor circuit error on control board (cycles disabled on upper dryer until diagnostic code is manually cleared).
d19
Upper dryer temperature too high (cycles disabled on upper dryer until diagnostic code is manually cleared).
Upper dryer motor control circuit error (cycles disabled on upper dryer until diagnostic code is manually cleared).
d20
Lower motor sensed running when it should be off. Check for line noise or wiring harness problems (cycles disabled on lower
d21
dryer until diagnostic code is manually cleared).
Upper motor sensed running when it should be off. Check for line noise or wiring harness problems (cycles disabled on upper
d22
dryer until diagnostic code is manually cleared).
d23
Control board is not calibrated for thermistors. Replace control board.
Dryer Diagnostic Mode
This mode is entered by depressing DELICATES for one second while in any of the setup codes one through six (or while dAS
displays if operating with Maytag Data Acquisition setup) or with a diagnostic code present. Diagnostic codes are cleared on
entry and all display segments should flash.
If a diagnostic code persists, it must be corrected before the diagnostic cycle may be executed. With all segments flashing, the
diagnostic cycle is started by depressing the PERMANENT PRESS keypad. The cycle consists of seven minutes of heat and 2
minutes of cool-down. The WHITES & COLORS keypad will increment the diagnostic cycle minutes up to 99, then roll over to 2
minutes. The PERMANENT PRESS keypad will cancel this cycle and exit the diagnostic mode.
Dryer Help Mode
Dryer help mode is entered by pressing the WHITES & COLORS keypad while in special pricing option step 2.XX (or while
dAS displays if operating with Maytag Data Acquisition setup). In help mode, information is displayed in the digits. Press the
WHITES & COLORS keypad at any time to exit help mode. Press the PERMANENT PRESS keypad to advance through the
information.
■ Software revision.
■ Upper or lower thermistor temperatures in °F are alternately displayed.
In help mode, the other display symbols and elements are mapped to reflect the state of various inputs and outputs as
follows:
PRICE - upper motor trying to run
ADD - upper pocket heating
BATTERY - upper motor sensed
OR - lower motor trying to run
SELECT - lower pocket heating
CYCLE - lower motor sensed
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