Kenmore Washer Error Code F/25

F/25 on a Kenmore washer indicates a drive motor tachometer error. The control board is unable to properly detect the motor speed signal, so the machine shuts down to prevent damage. The fault involves the communication path between the drive motor, the Motor Control Unit, and the Central Control Unit. It can be caused by wiring issues, a faulty tachometer sensor, or a failing control board.

No. When F/25 is triggered, the washer shuts down because the control board cannot verify that the motor is running at a safe and controlled speed. Attempting to bypass or ignore this fault and force the machine to run could result in damage to the motor, the drum, or the load inside. The fault should be diagnosed and resolved before resuming normal use.

Repair costs vary widely depending on the root cause. If the fix is simply reseating a loose wire harness connector, the cost may be minimal beyond a service call fee, which typically ranges from $50 to $100. Replacing the MCU generally costs between $150 and $350 in parts and labor. A new drive motor can add $200 to $400 or more to the total, depending on the specific model and local labor rates.

Some causes of F/25 are DIY-friendly. Start by confirming all shipping bolts and spacers have been removed, then unplug the washer and inspect the wire harness connectors at the drive motor, MCU, and CCU for corrosion or loose pins. If the wiring looks sound and the error returns, testing and replacing the tachometer sensor, MCU, or drive motor typically requires a technician with the appropriate tools and experience.

Unplugging the washer for a few minutes may temporarily clear the code, but if the underlying problem is still present, F/25 will return during the next wash cycle. A reset is useful for ruling out a one-time communication glitch, but it is not a repair. If the code comes back after a reset, proceed with a full diagnosis of the wiring, tachometer sensor, and control units.