Maytag Dryer Error Code F-25

F-25 on a Maytag electric dryer means the machine control board has detected a short in the inlet thermistor circuit. The inlet thermistor is a temperature sensor that monitors incoming air at the dryer's air intake. This code only appears during the dryer's diagnostic test mode and applies exclusively to electric models. The fault points to either the thermistor itself, the wiring connected to it, or in some cases the control board.

Because F-25 only appears in diagnostic test mode and not during normal operation, your dryer may seem to run fine day to day. However, a shorted inlet thermistor means the control board cannot accurately monitor incoming air temperature, which could affect how well the dryer regulates heat. It is best to have the fault diagnosed and repaired before continued regular use to avoid potential overheating concerns.

A reset may temporarily clear the code from the display, but it will not resolve the underlying fault. Because F-25 indicates a shorted thermistor or a wiring problem, the code will return when diagnostic test mode is run again if the root cause has not been repaired. Proper diagnosis and repair of the thermistor circuit are needed to permanently clear this fault.

Start by checking the wire connections at both the inlet thermistor and the machine control board, as loose or damaged wiring is a common cause. If all connections are secure and undamaged, use a multimeter to test the inlet thermistor's resistance. A shorted thermistor will read near zero ohms and needs to be replaced. If replacing the thermistor does not clear the code, have the machine control board evaluated as well.

If only the wiring needs to be reseated or repaired, the cost can be minimal. Replacing the inlet thermistor typically falls in the range of $15 to $50 for the part, plus labor if a technician performs the work. If the machine control board is the root cause, board replacement costs generally range from $100 to $300 or more depending on the model. Getting a diagnosis before purchasing parts can help avoid unnecessary expenses.