Brand:
Whirlpool
Category: Dryers
Document Type: Parts/Service
Language: EN
Parts/Service for WHD3090GW
Uploaded: Nov. 21, 2025, 9:24 p.m.
Manual Publish Date: 2017-01-01
This manual provides service information for the Whirlpool 4.3 cu ft Compact Heat Pump Dryer. It covers general information, theory of operation, control panel features, diagnostics and troubleshooting, and component testing and access. Key features include a ventless design, tap touch controls with memory, and various drying cycles and options. The manual details heat pump technology, sealed system operation, and the components involved in the drying process. It also outlines diagnostic modes, test cycles, and fault/error codes for troubleshooting. Component access and removal procedures are provided for key parts like the ACU, water tank, drive motor, drain pump, and front panel.
Troubleshooting and error codes
| Problem | Possible Causes | Checks & Tests |
|---|---|---|
| WILL NOT POWER UP No operation No keypad response No LEDs or display |
No power to dryer. Connection problem between AC plug and dryer. Connection problem between ACU and UI. Power supply not present at machine electronics. User Interface problem. |
Check power at outlet; check circuit breaker, fuses, or junction box connections. See TEST #2: Supply Connections, page 13. Check connections and harness continuity between ACU and UI. See TEST #1: ACU Power Check, page 12. See TEST #6: Buttons & Indicators, page 19. |
| WILL NOT START CYCLE (No response when Start is pressed) | Door filter or bottom lint filter not present or not positioned properly (filter icon showing in display). Door not fully closed/not striking the door latch. Door switch problem. Drive belt problem. Motor problem. User Interface or communication problem. ACU problem. |
Place door filter or bottom lint filter into position and make sure it is fully inserted. See TEST #11: Heater Exchange Switch, page 22. Be sure the door is completely closed, then press and hold START. See TEST #7: Door Switch, page 20. See TEST #3: Motor Circuit, page 14. See TEST #3: Motor Circuit, page 14. See TEST #6: Buttons & Indicators, page 19 and TEST #12: Communication Between UI and ACU, page 22. See TEST #1: ACU Power Check, page 12. |
| WILL NOT SHUT OFF WHEN EXPECTED | Poor airflow. Start/Pause button problem. Moisture sensor problem. NTC thermistor problem. User Interface or communication problem. ACU problem. |
Check lint filters and fan. Clean if necessary. See TEST #6: Buttons & Indicators, page 19. See TEST #5: Moisture Sensor, page 18. See TEST #4c: Thermistors, page 17. See TEST #6: Buttons & Indicators, page 19 and TEST #12: Communication Between UI and ACU, page 22. See TEST #1: ACU Power Check, page 12. |
| CONSOLE WON'T ACCEPT SELECTIONS | User selected invalid option. User Interface or communication problem. |
Refer customer to Use & Care Guide. See TEST #6: Buttons & Indicators, page 19 and TEST #12: Communication Between UI and ACU, page 22. |
| DRUM WILL NOT SPIN | Drive belt problem. Door switch problem. Motor problem. ACU problem. |
See TEST #3: Motor Circuit, page 14. See TEST #7: Door Switch, page 20. See TEST #3: Motor Circuit, page 14. See TEST #1: ACU Power Check, page 12. |