Stack Dryer Troubleshooting Guide - Maytag MDE/MDG21PDA Service Manual

Troubleshooting Procedures
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.

Stack Dryer Troubleshooting Guide

Display Is
Blank
Abnormal
Display Or
Function
Upper or
Lower Dryer
Has Zero
Minutes
Remaining
In Display.
©2004 Maytag Appliances Company
!
WARNING
Make sure both
dryers are plugged
into live power
source.
No
Unplug dryers. Check wiring
and terminations between
transformer, service switch
and control board.
Initiate reset
sequence. If
problem persists Yes
replace control
board.
Cycle power to
both dryers.
Open
corresponding
No
dryer door. Did
display change?
Yes
The dryer door must
be opened after the
end of a cycle. This
is a safety check on
the door switch.
16022904 Rev. 0
Enter operator
mode using
service switch. Is
diagnostic code
displayed?
Plug in dryer.
Does 115VAC
appear across the
primary of the
transformer?
Yes
Does each of 6.7 VAC,
22.6 VAC and 20.7 VAC
appear across
transformer secondary?
Initiate a service
cycle.
Unplug both dryers and
open doors. Check
continuity of problem
door switch and replace
it if shorted.
Does door switch
open and close
properly?
No
Replace door
switch.
See Diagnostic
Yes code Trouble
Shooting Guide.
Check wiring to
transformer, power
No
at outlet and
breaker.
Replace the transformer.
Inspect control board for
No
burned components and
replace it if damaged.
If problem If problem persist,
persists, initiate replace control
reset sequence.
Check wiring and
termination
Yes between door
switch and control
board.
If problem persist,
replace control board.
board.
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