Maytag MED5800TW - Electric Dryer Technical Education page 77

PROBLEM: Dryer Heats During
Air Fluff (No Heat) Cycle
Refer to Heater Strip Circuit, page 7-3 or 7-6;
and Troubleshooting Guide, page 6-9.
1. Perform Temperature Switch Test, page
6-5.
2. Unplug dryer or disconnect power.
3. Check continuity of heater relay contacts.
COM to NO should be open. If not, re-
place the heater relay.
4. With dryer fully assembled, plug in dryer
or reconnect power.
5. Set to Air Fluff. If the dryer still heats:
• Unplug dryer or disconnect power.
• Replace the electronic control assembly.
PROBLEM: Dryer Won't Shut Off
Refer to Motor and Moisture Sensor Strip Cir-
cuits, page 7-3 or 7-6; and Troubleshooting
Guide, page 6-9.
1. With the dryer fully assembled, set the
timer to Off. If the dryer starts running as
soon as it is plugged in:
• Unplug dryer or disconnect power.
• Replace the timer.
2. Set the following configuration:
• Dryer - power cord plugged in
• Door - must be closed
• Temperature switch - High
• Timer - Timed Drying for less than 10 min-
utes
3. If the dryer starts running before the Push
to Start (PTS) switch is pressed:
• Unplug dryer or disconnect power.
• Replace the PTS switch.
• If, after replacing the PTS switch, the
dryer still starts before the PTS switch
is pressed:
• Unplug dryer or disconnect power.
• Replace the motor relay.
4. If the dryer does not stop after the set
time elapses:
• Unplug dryer or disconnect power.
• Check the motor relay. Continuity of re-
lay should be open from COM to NO.
5. If the dryer will not terminate its cycle
when set to Sensor Drying:
• Unplug dryer or disconnect power.
• Check the moisture sensor.
• If there is continuity to Ground for Yel-
low-Red (Y-R) wire with no load, look
for a short in the sensor or Y-R wire.
Verify harness connections both at the
sensor and the electronic control.
• If the sensor and Y-R wire are good, re-
place the electronic control assembly.
PROBLEM: Dryer Shuts Off
Before Clothes Are Dry
Refer to Moisture Sensor Strip Circuit, page
7-3 or 7-6; Thermistor Test, page 6-7; and
Troubleshooting Guide, page 6-9.
1. Test the moisture sensor by following
the procedure outlined in the Diagnos-
tic Test, pages 6-1 & 6-2. If the moisture
sensor fails the Diagnostic Test (does not
produce a beep sound):
• Unplug dryer or disconnect power.
• Check the moisture sensor.
• If there is continuity to Ground for Yel-
low-Red (Y-R) wire with no load, look
for a short in the Sensor or Y-R wire.
Verify harness connections both at the
sensor and the electronic control.
• If the sensor and Y-R wire are good, re-
place the electronic control assembly.
2. If Diagnostic Test is passed, verify therm-
istor by performing test procedures out-
lined in Thermistor Test, page 6-7.
3. If problem persists after replacing mois-
ture sensor and thermistor:
• Unplug dryer or disconnect power.
• Replace the electronic control assembly.
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