Maytag Microwave Error Code F2

The F2 code on a Maytag microwave indicates that the control board detected a short circuit in the thermistor circuit before cooking began. The thermistor is a temperature-sensing component, and a short circuit means its resistance dropped far below the normal operating range. The microwave locks out operation as a safety measure until the fault is corrected. The issue typically points to a failed thermistor, damaged wiring, or contaminated connectors.

No, the microwave will not operate while the F2 code is active because the fault is detected during the pre-cook self-check. The unit intentionally prevents cooking without a functioning thermistor since it cannot safely monitor internal temperatures. Do not attempt to bypass this fault code, as operating without a working temperature sensor removes an important safety control.

Repair costs depend on which component has failed. A replacement thermistor is typically an inexpensive part, generally in the range of $15 to $50 depending on the specific model. If the control board requires replacement, part costs can range from $80 to $200 or more. Adding professional labor typically brings total repair costs to between $100 and $300, so it is worth comparing that figure against the cost of a new unit for older microwaves.

A knowledgeable DIYer can perform basic diagnosis by inspecting the thermistor wiring harness for visible damage and testing the thermistor resistance with a multimeter. If the thermistor is confirmed shorted, replacing it is a straightforward part swap in most models. However, working inside a microwave requires caution because the high-voltage capacitor can retain a dangerous charge even after unplugging the unit. If you are not comfortable safely discharging the capacitor, professional service is the safer option.

A power reset, such as unplugging the unit for a minute and restoring power, may temporarily clear the displayed code, but the F2 error will return immediately at the next power-on self-check if the thermistor circuit is still shorted. The underlying hardware fault must be corrected before the code will clear permanently. Do not rely on resets as a long-term solution.