Whirlpool WED90HEFC W10240504 - Page 20

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 "Install Diagnostics", page 7, to verify repair.  If there is continuity, go to step 7.  If there is no continuity, replace the main harness. 7. Measure the resistance across the outermost contacts of the connector that includes the two MOVs. 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: Part of Moisture System Harness/connection Metal sensor strips Machine control electronics Electric Gas Dryer Dryer NOTE: Refer to strip circuit on page 23 to diagnose moisture sensor. 1. Activate the Loads Test mode. See procedures on page 5. 2. Open the door. Using a wet cloth or one finger, jointly touch both sensor strips.  If a repeating beep tone is heard and an alphanumeric number is displayed on the console, the moisture sensor passes the test. Go to step 9.  If a beep tone is not heard, or a repeating beep tone is heard before touching both moisture strips, continue with step 3. NOTE: Overdrying may be caused by a short circuit in the sensor system. 3. Unplug dryer or disconnect power. 4. Remove top panel to access the machine electronics. 5. Access the moisture sensor wires by removing the console and front panel (see page 24). Disconnect the 3-wire moisture sensor connector located below the door opening between the front panel and bulkhead. 6. Access the CCU and remove connector P13 from the circuit board. Check the wire harness for continuity between P13 and the moisture sensor connector.  If a small resistance is measured, clean the two metal moisture strips inside the drum. If a small resistance is measured after cleaning, replace sensor harness.  If a small resistance is not measured, go to step 8. 8. Measure the resistance across each of the outermost contacts and the center terminal (ground connection).  If a resistance less than infinity is measured, replace the sensor harness. 9. If the moisture sensor diagnostic test passes, check the outlet thermistor: TEST #4a, page 17.  If the problem persists after replacing the moisture sensor and thermistor, consider adjusting the dryness level (see TEST #5a: Adjusting Customer-Focused Dryness Level). 10. If the preceding steps did not correct the problem, replace the CCU. 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, step 2, the total dry time can be lengthened or shortened by changing the Customer-Focused Dryness Level from "1" (standard auto cycle) to a "2" (15% more drying time), "3" (30% more drying time), "4" (15% less drying time, or "5" (30% less drying time) auto cycle. 1. In standby mode (dryer plugged in but not powered up), press and hold the DRYNESS LEVEL button for approximately 3 seconds. PAGE 20 DO NOT REMOVE OR DESTROY