F3Warning
GE Dryer F3 Error Code
The exhaust thermistor sensor is reading an open circuit, affecting temperature regulation.
Common causes
- Faulty thermistor
- Connector or wiring break
- Debris buildup on sensor
How to fix it
- Clean thermistor located on blower housing or exhaust duct
- Check thermistor resistance at room temp (~10-12k ohms)
- Inspect wiring harness for damage
⚠ When to call a pro: If resistance is out of spec, replace thermistor; if wiring intact but code persists, call technician.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.