Amana Dryer F3 E3 Error Code — What It Means
The F3 E3 code on an Amana dryer indicates an inlet thermistor fault. The inlet thermistor monitors the temperature of air entering the dryer drum, and this code means the control board has detected a problem in that sensor circuit. The fault may be the thermistor itself, a broken or corroded wire connection, or a control system issue that continues to flag the sensor even after a reset.
Amana’s official troubleshooting procedure starts with a full power interruption for five minutes, followed by a test cycle. If the code returns, the thermistor or its wiring harness is the focus of the repair.
Common Causes
- Failed inlet thermistor The sensor has failed internally and no longer reports temperature accurately or at all.
- Open or shorted thermistor circuit A break or short in the wiring between the thermistor and the control board triggers the fault.
- Loose or corroded connector The plug at the thermistor or the control board has backed out or corroded, interrupting the signal.
- Damaged wiring harness Wires have been pinched, chafed, or melted where the harness passes through the cabinet or near the blower housing.
- Control board misread after power event A surge or brownout can leave the board flagging a false fault that clears with a proper reset.
Step-by-Step Fix
- Turn off power at the circuit breaker and wait a full five minutes to allow the control board to reset completely.
- Restore power and set the dryer to a timed dry cycle, then start it and watch for the F3 E3 code to reappear.
- Unplug the dryer and pull it forward so you can remove the rear access panel or top cabinet (depending on your model) to reach the blower housing and thermistor locations.
- Locate the inlet thermistor, typically mounted on the blower housing where cool room air enters, and inspect the two-wire connector for corrosion, looseness, or heat damage.
- Test the thermistor with a multimeter set to ohms by disconnecting the plug and measuring across the sensor terminals (consult your model’s service table for the correct resistance range at room temperature).
- Check wiring continuity from the thermistor connector back to the control board harness, looking for breaks, pinches, or shorts to ground.
- Replace the inlet thermistor if it reads open, shorted, or out of specification, or repair any damaged wiring and connectors you found, then reassemble, restore power, and run a test cycle.
Parts Often Needed
| Part | Notes |
|---|---|
| Inlet thermistor | Amazon | Order by your dryer’s full model number to make sure correct sensor and connector type. |
| Wire harness repair kit | Amazon | If wiring or terminals are damaged and the thermistor itself tests good. |
When to Call a Pro
If the five-minute reset clears the code permanently, no further repair is needed. Call a qualified appliance technician if you are uncomfortable working inside a 240-volt dryer cabinet, if the thermistor and wiring both test normal but the code persists (pointing to a control board fault), or if you do not have a multimeter and service documentation to verify thermistor specifications for your exact model. A pro can also confirm that the blower housing and duct system are not contributing to abnormal inlet conditions that stress the sensor.