Maytag MED5800TW 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, replace 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 Circuits, 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, replace 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 Diagnostic 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, replace the electronic control assembly. 2. If Diagnostic Test is passed, verify thermistor by performing test procedures outlined in Thermistor Test, page 6-7. 3. If problem persists after replacing moisture sensor and thermistor: • Unplug dryer or disconnect power. • Replace the electronic control assembly. 6-11