Whirlpool WGD6400S Gas dryer
Troubleshooting, fault codes and repair information for the Whirlpool WGD6400S, organized around the engineering platform this gas dryer is built on.
- Brand
- Whirlpool
- Model
- WGD6400S
- Engineering revisions
- WGD6400S, WGD6400S0
- Appliance
- Gas dryer
- Platform
- Gas dryer platform, documentation from about 2006
- Models on this platform
- 2 across Whirlpool
- Documented fault codes
- 7 with explanations
- Service diagnostic mode
- Yes — a console-only test mode used by technicians to read stored codes and run component tests
- Service documentation
- Tech sheet (used by our technicians; not published)
Whirlpool WGD6400S error codes
These are the fault codes documented for the platform this model belongs to. A code describes a condition the control detected; it does not by itself identify a failed part. Select a code for causes, safe checks and repair context.
| Code | Meaning | Areas involved |
|---|---|---|
| F01 | Primary control failure | Main control board |
| F02 | Keypad or user interface failure | User interface / keypad board |
| F22 | Exhaust thermistor open | Temperature sensor (thermistor), Wiring harness and connectors, Main control board |
| F23 | Exhaust thermistor shorted | Temperature sensor (thermistor), Wiring harness and connectors, Main control board |
| F26 | Motor drive system failure | Drive motor, Drive belt, Door switch |
| F28 | Moisture sensor open | Moisture sensor bars, Wiring harness and connectors |
| F29 | Moisture sensor shorted | Moisture sensor bars, Wiring harness and connectors |
Common dryer problems
Typical dryer repair costs
| Repair | Typical range | Labor |
|---|---|---|
| Dryer thermal fuse and thermostat replacement | $180–$310 | Light |
| Gas dryer valve coil or gas valve replacement | $180–$420 | Moderate |
| Gas dryer igniter and flame sensor replacement | $180–$370 | Light |
| Dryer drive motor or blower wheel replacement | $250–$550 | Heavy |
| Dryer drum belt replacement | $180–$320 | Light |
| Dryer drum rollers, glides and idler pulley replacement | $190–$420 | Moderate |
| Dryer moisture sensor bar repair | $180–$310 | Light |
| Dryer door switch replacement | $180–$290 | Light |
| Dryer exhaust thermistor replacement | $180–$290 | Light |
| Dryer main control board replacement | $280–$640 | Moderate |
Typical total ranges for the Las Vegas area, parts and labor included. The final cost depends on diagnosis, the exact model, parts availability and whether other damage is found.
Repair or replace?
Dryers typically last about 12–14 years. Service documentation for this platform dates from about 2006, so the oldest units built on it are now around 20 years old. The age printed in the serial number, the repair cost and the condition of the rest of the appliance decide it. Use the repair-or-replace guide.
Models built on the same platform
These models share this platform's service documentation, so fault codes and most diagnostic steps are the same.
Need your Whirlpool WGD6400S repaired in the Las Vegas area?
We repair Whirlpool, Maytag, KitchenAid, JennAir, Amana and other Whirlpool-family appliances in Las Vegas, Henderson, Summerlin and Boulder City. A model number helps but is never required to book.