Maytag dryer F3E3: inlet thermistor fault
F3E3 means the inlet temperature sensor at the heat source reads as open, and on 2020 and newer platforms either open or shorted.
What F3E3 means
- Brand
- Maytag
- Appliance
- Electric dryer, Gas dryer
- Code
- F3E3
- Documented meaning
- Inlet thermistor fault
- Applies to
- 232 Maytag models on 24 platforms
- Can you keep using it?
- No — stop and have it checked
What the dryer is detecting
The inlet thermistor sits where heated air enters the drum and lets the control watch the heat source. F3E3 is set when its signal looks like an impossibly cold reading (open) or, on newer platforms, an impossibly hot one (shorted).
Causes listed for this condition
In the order the service documentation checks them. Documented causes come from the manufacturer's service documentation for these platforms; possible causes are based on how the system works; unconfirmed marks common assumptions that the documentation does not support.
- Documented A failed inlet thermistor.
- Documented A sensor connector unplugged or loose at the main control; newer documentation names this specifically.
- Possible Heat-damaged wiring near the heater or burner housing.
- Possible A sensing-circuit fault in the main control.
Safe checks you can make
- Turn the dryer off at the breaker (or unplug it) for about one minute, restore power and start a new cycle to see whether the code comes back right away.
Further diagnosis requires opening the appliance. Beyond the owner checks, diagnosis involves removing panels, testing components and checking wiring. We describe what a technician investigates, not how to do it yourself.
What a technician checks
- Reads the temperature sensor values in the service diagnostic mode and compares them with the room temperature.
- Checks the sensor connector at the main control and the sensor's own connection for a loose or damaged terminal.
- Tests the sensor and its circuit before deciding whether the sensor, the harness or the main control is at fault.
- Inspects the area around the heat source for heat-damaged wiring, which can point to an overheating problem.
Typical repairs and cost
Depending on what diagnosis finds, this code can lead to one of these repairs:
| Repair | Typical range | Labor |
|---|---|---|
| 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.
Can you keep using it?
Stop using it until it is checked. Do not keep running heated cycles until the sensor is checked. The control uses this sensor to watch the heat source.
Maytag models documented with this code
- MGD3000BG
- MGD3000BW
- MGD3000CG
- MGD3000CW
- MGD3100DW
- MGD3500FW
- MGD4000BW
- MGD4000CW
- MGD4100DW
- MGD4200BG
- MGD4200BW
- MGD4200CG
- MGD4200CW
- MGD4205SW
- MGD4300DC
- MGD4300DG
And 216 more. Use the model lookup to check yours.
Related problems and codes
Other codes documented on the same Maytag platforms:
Repair or replace?
A fault code alone rarely justifies replacing a dryer. Most F3E3 repairs involve a single component once diagnosed. Replacement becomes worth considering when the unit is near the end of its typical 12–14-year life and the diagnosed repair is a major one. See the repair-or-replace guide.
Need F3E3 diagnosed 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.