F3
Amana
Exhaust Thermistor or Temperature Sensor Fault
Dryer shows F3 and may shut off prematurely or run erratically with respect to dryness levels.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Open or shorted exhaust thermistor, Damaged thermistor wiring harness, Poor thermistor connection at control, Failed main control temperature circuit
How to Fix / Troubleshooting
Safety first: Unplug the dryer before removing any panels.
- Locate the thermistor: Remove the rear panel. The exhaust thermistor is typically mounted on or near the blower housing or exhaust duct.
- Inspect wiring: Check the thermistor connector and wiring harness for damage, burns, or loose connections. Reseat the connector.
- Test the thermistor: Disconnect the thermistor and measure its resistance with a multimeter at room temperature. Compare to Amana’s specifications (commonly around 10k ohms at 77°F, but verify for your model). Replace if open, shorted, or out of range.
- Reassemble and test: Reinstall panels, restore power, and run a test cycle to see if F3 clears.
If the thermistor and wiring test good, the main control board may have a defective temperature sensing circuit.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Exhaust Thermistor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements