How to Fix / Troubleshooting

Safety First: Disconnect power and gas supply before opening the cabinet.

Steps:

Access inlet thermistor: Remove the top and front panels as needed to reach the inlet thermistor on the front bulkhead or blower housing.
Inspect for shorts: Look for bare wires touching metal, melted insulation, or signs of overheating around the thermistor.
Test thermistor: With one wire removed, measure resistance. A very low resistance (near 0 ohms) indicates a shorted sensor.
Replace thermistor: Install a new inlet thermistor and route wiring away from sharp edges and hot surfaces.
Check control board: If a new thermistor and good wiring still result in F24, the main control board may be misreading the sensor and require replacement.

Dryer displays F24 and may not heat or may shut off prematurely

Possible Causes