How to Fix / Troubleshooting

Safety First: Disconnect power and allow the dryer to cool before servicing the heater area.

Step 1 – Access inlet thermistor: Remove the rear panel or front panel (depending on model) to reach the heater housing where the inlet thermistor is mounted.
Step 2 – Inspect wiring: Look for melted, pinched, or bare wires touching metal or each other. Repair with high‑temperature wire and proper connectors.
Step 3 – Test thermistor: Disconnect the thermistor and measure resistance at room temperature. A reading near 0 ohms indicates a shorted sensor.
Step 4 – Replace thermistor: Remove the mounting screw, install a new OEM inlet thermistor, and reconnect the harness securely.
Step 5 – Check for moisture: If the area is damp, identify and correct any venting issues that may be causing condensation inside the dryer.

Reassemble the dryer, restore power, and run a test cycle to verify that F25 does not return.

Dryer displays F25 and may not heat correctly or may shut down unexpectedly.

Possible Causes