Maytag Dryer Error Code F3E1

F3E1 means the control board detected an open circuit in the exhaust thermistor. The thermistor's resistance measured above 50,000 ohms, which corresponds to a sensed temperature below 18°F and indicates a broken sensor or wiring rather than an actual temperature reading. The exhaust thermistor is a small sensor in the dryer's exhaust duct that monitors heat levels during operation.

No. With a failed exhaust thermistor, the control board cannot reliably monitor exhaust temperatures, which means it loses the ability to detect overheating conditions. Running the dryer without proper thermal sensing creates a fire risk. Do not use the dryer until the thermistor or wiring fault is repaired and the code is cleared.

Yes. Disconnect the dryer from power, locate the exhaust thermistor, and unplug its connector. Use a multimeter set to resistance and measure across the thermistor terminals. At room temperature, a good thermistor typically reads between 10,000 and 20,000 ohms. A reading of infinite resistance or over 50,000 ohms at room temperature confirms the thermistor has failed and needs replacement. Maytag's TEST #4a on page 16 provides the exact resistance values and steps for your specific model.

Start with TEST #4a: Thermistors on page 16 of the Maytag service manual. This test walks you through checking the exhaust thermistor's resistance with a multimeter and inspecting the wiring harness and connectors. If the thermistor reads open or out of range, replace it. If the sensor tests good, check the harness for breaks and inspect all connectors before suspecting the control board.

If the exhaust thermistor itself is the cause, the part typically costs between $10 and $30, and replacing it is a manageable DIY repair on most Maytag dryer models. A wiring repair may cost nothing if the fix is simply reseating a connector. If a professional technician is needed, expect a service call fee plus labor, bringing the total to roughly $100 to $200 depending on your area and whether other components are involved.