Maytag MDG25PN Service Manual page 108

unusual sounds
• Has the dryer had a period of non-use?
If the dryer hasn't been used for a while,
there may be a thumping sound during the
first few minutes of operation.
• Is a coin, button or paper clip caught
between the drum seal and front or rear
bulkheads of the dryer?
Check felt seals for stuck small objects.
• Is it a gas dryer?
Gas valve clicking is a normal sound.
• Are the 4 legs installed, and is the dryer
level front to back and side to side?
The dryer may vibrate if not properly
installed. See installation instructions.
Excessive vibration can also be due to
missing vibration pad under the motor
bracket. (See page 4-28).
• Is the clothing knotted or balled up?
When balled up, the load will bounce,
causing the dryer to vibrate. Separate the
load items and restart the dryer.
• Is the noise from the blower?
Lint balls in blower wheel causes noise. A
cracked blower wheel causes excess noise.
• Is the vent connected to the dryer?
Dryer makes more noise with the vent off.
Dryer display flashes in user mode
• Make sure coin box is inserted all the way
and locked in place.
• Check physical position of vault switch.
If position is correct check switch wiring and
harness connections.
If wiring checks OK, check AA1 connector
on control board.
• Unplug dryer and AA1 connector from
control board, check continuity between the
black and orange wires in the connector.
Continuity not found, recheck the wire
harness and connectors from AA1
connector to vault switch. Replace the
switch wire harness if no problem can be
found and the switch checks out fine.
Continuity is good, reinstall the AA1
connector and check operation. If display
is still flashing, make sure coin box is deep
enough to engage coin vault switch If so,
replace the UIC.
Dryer reverts to default options
• Set-up the desired options and save the
settings. Unplug the dryer for 15 seconds.
Reapply power to dryer, if operator desired
options revert to factory defaults, replace
control board.
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