Maytag MEDB835DC W10240504 - Page 21
TEST #5: Moisture Sensor, TEST #5a: Adjusting Customer, Focused Dryness Level
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FOR SERVICE TECHNICIAN'S USE ONLY IMPORTANT: To avoid damage to the gas burner wire harness, ensure the harness is routed exactly as it was prior to service. 10. Unplug dryer or disconnect power. 11. Reassemble all parts and panels. 12. Plug in dryer or reconnect power. 13. Perform steps under "Service Test Mode", page 6, to verify repair. TEST #5: Moisture Sensor This test is performed when an automatic cycle stops too soon, or runs much longer than expected. NOTE: Dryer will shut down automatically after 2½ hours. The following items are part of this system: 5. Measure the resistance across the outermost contacts of the connector that includes the two MOVs. If a small resistance is measured, clean the two metal moisture strips inside the drum. If a small resistance is measured after cleaning, replace the sensor harness. If a small resistance is not measured, go to step 6. 6. Measure the resistance across each of the outermost contacts and the center terminal (ground connection). Part of Moisture System Harness/connection Electric Gas Dryer Dryer Metal sensor strips Machine control electronics NOTE: Refer to strip circuit on page 24 to diagnose moisture sensor. NOTE: Overdrying may be caused by a short circuit in the sensor system. 1. Unplug dryer or disconnect power. 2. Remove console to access the machine electronics. 3. Access the moisture sensor wires by sliding the top panel back and removing the front panel. Disconnect the 3-wire moisture sensor connector located below the door opening between the front panel and bulkhead. 4. Access the ACU and remove connector P13 from the circuit board. Check the wire harness for continuity between P13 and the moisture sensor connector. If there is continuity, go to step 5. If there is no continuity, replace the main harness. If a resistance less than infinity is measured, replace the sensor harness. 7. If the moisture sensor diagnostic test passes, check the outlet thermistor: TEST #4a, page 18. If the problem persists after replacing the moisture sensor and thermistor, consider adjusting the dryness level (see TEST #5a: Adjusting Customer-Focused Dryness Level). 8. If the preceding steps did not correct the problem, replace the ACU. TEST #5a: Adjusting CustomerFocused Dryness Level NOTE: If the customer complains about the clothes being less dry or more dry than desired and the moisture sensor passes TEST #5: Moisture Sensor, the total dry time can be lengthened or shortened by changing the Customer-Focused Dryness Level from "2" (standard auto cycle) to a "3" (15% more drying time), "4" (30% more drying time), "1" (15% less drying time), or "0" (30% less drying time) auto cycle. 1. In standby mode (dryer plugged in but not powered up), press and hold the DRYNESS or DRY LEVEL button for approximately 3 seconds. DO NOT REMOVE OR DESTROY PAGE 21
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