Whirlpool Dryer Error Code F10

Whirlpool Dryer Error Code F10 — What It Means

The F10 error on many Whirlpool dryers typically points to a fault in the dryer’s temperature sensing or moisture-sensing circuit. Depending on the model, the code is most commonly associated with a failed thermistor (temperature sensor) or moisture sensor, an open or short in the wiring harness, or a related control board issue. When the dryer cannot accurately sense temperature or moisture, it may run too long, not heat correctly, stop unexpectedly, or display reduced performance. In addition to longer drying times and increased energy use, a persistent sensing fault can create safety risks such as overheating if a temperature sensor fails to report high temperatures correctly, or repeated cycling that stresses components.

Because Whirlpool uses different control boards and sensor arrangements across model lines, the exact meaning of F10 can vary by model and model year. Always consult your model’s user manual or the wiring/service sheet on the dryer (usually found behind the control panel or lower kickplate) for the model-specific definition before replacing parts.

Common Causes

• Faulty thermistor (temperature sensor) or moisture sensor (open or short)
• Contaminated or corroded moisture-sensor bars (sensor not reading correctly)
• Damaged or disconnected wiring harness between sensor and control board
• Faulty main control board or intermittent PCB connection
• Blown thermal fuse or high-limit thermostat downstream of sensor that affects sensing circuit
• Restricted venting or heavy lint buildup causing sensor misreads and overheating
• Incorrect voltage or power supply issues causing false fault detection

Troubleshooting Steps

1. Power reset: Unplug the dryer or switch off the circuit breaker for 1–5 minutes, then restore power and see if the code clears. This can reset transient electronic faults.
2. Check model-specific definition: Locate the service sheet (usually taped inside the dryer cabinet or on the control panel) or consult your owner’s manual to confirm what F10 means for your exact model.
3. Inspect the vent and lint path: Remove and clean the lint screen and the vent duct; a clogged vent can cause overheating and sensor confusion. Use a vent brush or professional duct cleaning if needed.
4. Clean the moisture-sensing bars: If your dryer has sensor bars on the lint trap housing, wipe them with a cloth and a little rubbing alcohol to remove residue from dryer sheets or fabric softener that can prevent accurate readings.
5. Visual wiring check: Unplug the dryer and inspect wiring between the sensor(s) and control board for chafing, loose connectors, or burned spots. Secure any loose connectors.
6. Test sensors and thermal devices: With the dryer unplugged, use a multimeter to check continuity/resistance of the thermistor/moisture sensor and thermal fuses. Compare results to values listed on the service sheet. Replace any part that is out of spec or shows no continuity where continuity is expected.
7. Check the thermal fuse and high-limit thermostat: A blown thermal fuse can cause the dryer to stop heating or report errors; test and replace if necessary.
8. Inspect control board: Look for burnt components, damaged solder joints, or swollen capacitors on the main control board. If the board is damaged, replacement is usually required.
9. Swap or bypass for diagnosis: If you have the correct replacement sensor or board and the skills, swap in the known-good part to confirm the failure. Only do this if you are comfortable and the part is inexpensive to replace.
10. Call a technician: If the code persists after the above steps or if you find signs of control board damage or complex wiring issues, contact a qualified appliance technician for safe diagnosis and repair.

Maintenance / Prevention Tips

• Clean the lint trap before every load to maximize airflow and reduce stress on sensors.
• Wipe sensor bars periodically with rubbing alcohol to remove residue from dryer sheets and fabric softeners.
• Inspect and clean the dryer vent and exhaust path at least once a year (more often for heavy use).
• Use the correct vent materials (rigid or recommended flexible duct) and avoid long, convoluted duct runs.
• Do not overload the dryer; heavy loads reduce airflow and increase cycle times and wear on sensors.
• Replace crushed or kinked vent hoses to maintain proper airflow.
• Keep the dryer installation level and well-ventilated to avoid heat pooling around electronics.
• Use the manufacturer-recommended detergent and avoid excess fabric softener buildup on garments.
• Have a pro inspect the dryer vent system and roof/sidewall termination annually if you live in a multi-level home or use the dryer heavily.
• Address any odd smells, burning odors, or unusual noises immediately to prevent damage to sensors or control boards.
• Periodically check the back of the dryer for lint build-up and clean around the motor and heating-area vents.
• Keep the dryer’s power cord and outlet in good condition; electrical issues can trigger false codes.
• When using dryer sheets, avoid overuse; residue can build up on sensors more quickly.
• During annual maintenance, have a technician test thermistors and thermostats for proper function.
• Store detergents and chemicals away from the dryer to avoid accidental contamination of sensors.

FAQs

Conclusion / Safety Notice

Diagnosing an F10 code requires careful inspection of sensors, wiring, and ventilation. Always disconnect power before opening panels or testing electrical components. If you are not comfortable with electrical testing, or if you find evidence of control board damage, burned wiring, or repeated faults after basic troubleshooting, contact a certified appliance technician. Professional service will ensure safe and correct repairs and help avoid potential safety hazards.

If in doubt, stop using the dryer until the issue is resolved by a qualified technician to prevent damage or risk to your home and family.