Amana Dryer F3 E2 Error Code — What It Means
The F3 E2 error on an Amana dryer signals an abnormal reading from the exhaust thermistor, the temperature sensor that monitors air temperature in the vent path. The control board detects either near-zero resistance or an out-of-range signal from this sensor and stops the cycle to protect the dryer. Because Amana is a Whirlpool brand, some models may display this code as a temperature control fault on combination washer-dryer units, but the root issue is the same: the electronics cannot read valid temperature data.
Common Causes
- Failed exhaust thermistor The temperature sensor itself reads out of range, often near zero ohms or open circuit.
- Damaged or corroded wiring Loose connectors, broken wires, or heat-damaged harness sections in the thermistor circuit prevent proper signal transmission.
- Blocked airflow or venting Lint buildup or restricted ductwork can cause abnormal temperature readings that trigger the fault.
- Failed main control board If the sensor and harness test correctly, the control board’s sensor-input circuitry may have failed.
Step-by-Step Fix
- Unplug the dryer for at least five minutes, then restore power to clear any transient control fault and see if the code returns.
- Locate and inspect the exhaust thermistor harness for loose, corroded, or heat-damaged connectors and wiring near the blower housing or vent duct.
- Measure thermistor resistance at the sensor connector with a multimeter and compare to your model’s tech-sheet specification; readings near zero ohms or open circuit indicate a failed sensor.
- Clean the entire vent path, including the lint filter housing, ductwork, and exterior termination, then verify strong airflow at the vent exit.
- Replace the exhaust thermistor if resistance is out of range, or repair any damaged wiring and connectors in the circuit.
- Test the control board by confirming correct voltage at the thermistor connector; if the sensor and wiring are good but the code persists, replace the main electronic control.
- Run a full test cycle after repair to confirm the F3 E2 code does not return and the dryer completes normally.
Parts Often Needed
| Part | Notes |
|---|---|
| Exhaust thermistor (temperature sensor) | Amazon | Match the part number on your model’s tech sheet or service label. |
| Thermistor wiring harness | Amazon | Order if connectors are melted, corroded, or physically damaged. |
| Main electronic control board | Amazon | Required only if the sensor and harness test correctly but the fault persists. |
When to Call a Pro
Call a technician if you are not comfortable working with a multimeter, reading resistance values, or accessing internal components behind the dryer drum and blower housing. Professional diagnosis is also recommended if you have replaced the thermistor and verified all wiring but the code returns, since control-board faults require experience with electronic testing and part-number cross-referencing. If your dryer is still under warranty, contact Amana or your retailer before attempting any repair to preserve coverage.