Troubleshooting Procedures
CAUTION
!
To avoid electrical shock, personal injury, or death, disconnect power to unit before servicing, unless testing
requires power.
©2005 Maytag Services
16026267 15
1.
Setting time does
not count down
when touching
START pad.
2.
Fan motor or
oven lamp do
not turn on.
No continuity.
Continuity.
Continuity
Failed P.C.B.
assembly.
Loose connection.
Replace P.C.B.
assembly.
Connect them
tightly.
No continuity
Abnormal
Check fan motor.
Failed fan motor.
Replace fan motor.
Abnormal
Normal
No continuity
Continuity
Check oven lamp.
Check continuity
of primary switch.
Failed oven lamp. Replace oven lamp.
Failed secondary
switch.
Replace
secondary switch.
Check continuity
of secondary
switch (with
door closed).
Check the
connection
between CN1
connector and
P.C.B. assembly.
Failed primary
switch.
Replace primary
switch.
NOTE:
Simple test of power output-conducted by heating one liter water for one minute, if available.
Minimum 47°F (8.5°C) temperature rise is normal condition.
Output is low.
Lower than 90%
of rating voltage.
Normal
Abnormal
Failed P.C.B.
assembly.
Replace P.C.B.
assembly.
Normal
Abnormal
Measure the
output power.
Failed
magnetron.
Replace
magnetron.
Decrease in power
source voltage
with load.
Suggest customer
contact local
electric power
company or
qualified electrician.
Check the
power source
voltage.
Disconnect the
wire leads from
relay 2 and check
on and off time
with multimeter.
(TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired
program times are set and START pad is touch.
CONDITION CHECK RESULT CAUSE REMEDY
(TROUBLE 4) Oven seems to be operating but little heat is produced in oven load.
CONDITION CHECK RESULT CAUSE REMEDY
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