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DIAGNOSTIC GUIDE
Before servicing, check the following:
■ Make sure there is power at the wall outlet.
■ Has a fuse blown or circuit breaker tripped? Was a regular fuse
used? A time-delay fuse is required.
■ Is dryer vent properly installed and clear of lint or other
obstructions?
■ All tests/checks should be made with a VOM (volt-ohm-
milliammeter) or DVM (digital-voltmeter) having a sensitivity of
20,000 Ω per volt DC or greater.
■ Resistance checks must be made with dryer unplugged or
power disconnected.
■ IMPORTANT: Avoid using large diameter probes when
checking harness connectors as the probes may damage the
connectors upon insertion.
■ Check all harnesses and connections before replacing
components. Look for connectors not fully seated, broken or
loose wires and terminals, or wires not pressed into
connectors far enough to engage metal barbs.
■ A potential cause of a control not functioning is corrosion or
contamination on connections. Use an ohmmeter to check for
continuity across suspected connections.
DIAGNOSTIC MODE
This mode is entered by pressing DELICATES for one
second while in any of the set-up codes 1 through 6 (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
pressing the NORMAL key pad. The cycle consists of 7 minutes of
heat and appropriate cool down time.
The HEAVY DUTY key pad will increment the diagnostic cycle
minutes up to 75, then roll over to 2 minutes. The DELICATES key
pad will cancel this cycle and exit the diagnostic mode.
2
FOR SERVICE TECHNICIAN'S USE ONLY
DIAGNOSTIC CODES
If the set-up mode is entered and one of the following has
occurred, the appropriate diagnostic code will be in the display.
CODE
d1
Dryer door sense error on control board or due to
power line interference (cycles and price display
disabled until diagnostic code is manually cleared).
d4
Dryer motor control circuit error (cycles and
customer display disabled until diagnostic code is
manually cleared).
d5
Blocked coin 1 or coin drop control circuit failure
(coin recognition and customer display disabled
while blockage persists).
d9
Voltage detected below 90 VAC for 8 seconds.
d12
Motor sense error on control board or due to
power line interference (cycles and customer
display disabled 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).
d16
Not receiving communications from installed debit
card reader in Enhanced (Generation 2) Debit
mode.
HELP MODE
Dryer help mode is entered by pressing the HEAVY DUTY
key pad while in special pricing option step 2.XX (or while dAS
displays if operating with Maytag Data Acquisition setup).
In help mode, the software revision is displayed in the digits.
Press the HEAVY DUTY key pad at any time to exit help mode.
In help mode, other display symbols and elements are mapped
to reflect the state of various inputs and outputs as follows:
*. . . . . . . . . . . . . . . . . . low voltage present (below about 90 VAC)
circle above digit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . door closed
& . . . . . . . . . . . . . . . . . . . . . . . . . .140°F (60°C) thermostat closed
OR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . motor sensed running
AIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .heater/gas valve relay on
FLUFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . motor relay on
EXPLANATION
DO NOT REMOVE OR DESTROY
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