Maytag Washer Error Code F/05

F/05 means the water temperature sensor, known as an NTC thermistor, is sending a reading outside the acceptable range during the heating step of the wash cycle. The control board monitors the sensor's resistance to track water temperature, and when that value is invalid, the error is triggered. This typically points to a failed sensor, a loose connector, or damaged wiring between the sensor and the board.

Unplugging the washer for a few minutes may temporarily clear the code, but it will return as soon as the washer attempts the water heating step again if the underlying problem has not been fixed. A reset does not repair a failed sensor or damaged wiring. The code will persist until the root cause is corrected.

If the fix is simply reseating a loose connector, there is no parts cost involved. Replacing the NTC water temperature sensor typically costs between $15 and $50 for the part, depending on the specific model. If a professional technician is needed, expect to add a service call fee and labor charge, bringing the total repair cost to a range of roughly $100 to $250 in most markets.

Many technicians and experienced DIYers can resolve F/05 by disconnecting power, inspecting the NTC sensor connector, and testing sensor resistance with a multimeter. If the connector is loose, reseating it may clear the code at no cost. If the sensor itself has failed, replacing it is a straightforward repair that typically requires basic hand tools and a compatible replacement thermistor.

The washer is not dangerous to be around when this code appears, but it will not heat water correctly, which means wash performance will be reduced for cycles that require warm or hot water. It is best to diagnose and repair the fault before continuing regular use to avoid washing clothes in unintended cold water.