Whirlpool WED90HEFC W10240504 - Page 10

FOR SERVICE TECHNICIAN'S USE ONLY TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSE CHECKS & TESTS WILL NOT POWER UP - No operation - No keypad response - No LED's or display No power to dryer. Check power at outlet, check circuit breaker, fuses, or junction box connections. Connection problem between AC plug and dryer. See Test #2: Supply Connections, page 12. Connection problem between CCU and UI. Check connections and harness continuity between CCU and UI. Power supplies not present at machine electronics. See Test #1: CCU Power Check, page 11. User Interface problem. See Test #6: Buttons & Indicators, page 21. WILL NOT START CYCLE (No response when Start button is pressed.) Door not fully closed or striking the door latch. Be sure the door is completely closed, then press and hold the START button. Door Switch problem. See Test #7: Door Switch, page 21. Drive Belt / Belt Switch problem. See Test #3: Motor Circuit, page 14. Thermal Fuse / Motor problem. See Test #3: Motor Circuit, page 14. User Interface problem. See Test #6: Buttons & Indicators, page 21. CCU problem. See Test #1: CCU Power Check, page 11. WILL NOT SHUT OFF WHEN EXPECTED Poor airflow. Check lint screen and exhaust vent. Clean if necessary. Check the Pause/Cancel button. Perform UI Component Test under Component Activation. Moisture Sensor problem. See Test #5: Moisture Sensor, page 20. Thermistor problem. See Test #4a: Thermistors, page 17. User Interface problem. See Test #6: Buttons & Indicators, page 21. CCU problem. See Test #1: CCU Power Check, page 11. CONSOLE WON'T ACCEPT SELECTIONS User selected invalid option. User Interface problem. Refer customer to "Use and Care Guide". See Test #6: Buttons & Indicators, page 21. DRUM WILL NOT SPIN Drive Belt / Belt Switch problem. See Test #3: Motor Circuit, page 14. Thermal Fuse (elect. only). See Test #4b: Thermal Fuse, page 19. Door switch problem. See Test #7: Door Switch, page 21. Motor problem. See Test #3: Motor Circuit, page 14. CCU problem. See Test #1: CCU Power Check, page 11. WILL NOT HEAT Check installation. Check for L1 and L2. Verify proper dryer installation. Perform CCU L1 and L2 tests under Install Diagnostics. Heater system malfunction or open heater coil. See Test #4: Heat System, page 15. CCU problem. See Test #1: CCU Power Check, page 11. HEATS IN AIR CYCLE Heater coil shorted. Heater relay shorted. See Test #4: Heat System, page 15. See Test #4: Heat System, page 15. Heater system problem. See Test #4: Heat System, page 15. SHUTS OFF BEFORE CLOTHES ARE DRY Dryness setting for auto cycles. Lint screen full. Increase drying times for one or more auto cycles. Clean if necessary. Refer customer to "Use and Care Guide". Heater vent clogged. Clean if necessary. Refer customer to "Use and Care Guide". Moisture Sensor problem. See Test #5: Moisture Sensor, page 20. Adjust Customer Focused Dryness Level. See Test #5a: Adj. Cust. Focused Dryness Level, page 20. WATER VALVE NOT DISPENSING Steam cycle not selected. (ON SOME MODELS) No water to valve. (Water valve is activated intermittently No water from valve. during the steam cycle.) Refer customer to "Use and Care Guide". Verify water supply is turned on. See Test #9: Water Valve, on page 22. WATER LEAKING FROM DRYER (ON SOME MODELS) (Too much water being dispensed during steam cycles) Residue buildup on water nozzle opening. Unscrew nozzle and clean if necessary. Refer customer to "Use and Care Guide". PAGE 10 DO NOT REMOVE OR DESTROY