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©2004 Maytag Appliances Company 16022904 Rev. 0 29
Troubleshooting Procedures
!
WARNING
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
Make sure both
dryers are plugged
into live power
source.
Enter operator
mode using
service switch. Is
diagnostic code
displayed?
See Diagnostic
code Trouble
Shooting Guide.
Unplug dryers. Check wiring
and terminations between
transformer, service switch
and control board.
Plug in dryer.
Does 115VAC
appear across the
primary of the
transformer?
Check wiring to
transformer, power
at outlet and
breaker.
Initiate reset
sequence. If
problem persists
replace control
board.
Does each of 6.7 VAC,
22.6 VAC and 20.7 VAC
appear across
transformer secondary?
Replace the transformer.
Inspect control board for
burned components and
replace it if damaged.
Yes
No
No
Yes
Yes No
Abnormal
Display Or
Function
Cycle power to
both dryers.
Initiate a service
cycle.
If problem
persists, initiate
reset sequence.
If problem persist,
replace control
board.
Upper or
Lower Dryer
Has Zero
Minutes
Remaining
In Display.
Open
corresponding
dryer door. Did
display change?
Unplug both dryers and
open doors. Check
continuity of problem
door switch and replace
it if shorted.
The dryer door must
be opened after the
end of a cycle. This
is a safety check on
the door switch.
Does door switch
open and close
properly?
Check wiring and
termination
between door
switch and control
board.
Replace door
switch.
If problem persist,
replace control board.
No
Yes
Yes
No