Kenmore Dryer Error Code F-45

F-45 on a Kenmore dryer means the motor control electronics have detected a speed sensor failure. The motor control board is not receiving a valid signal confirming the drive motor's rotational speed. This causes the dryer to stop operating to prevent potential damage. Diagnosis should begin with TEST #3b to isolate the faulty component.

You should not attempt to continue using the dryer while the F-45 code is active. The control board has halted operation because it cannot confirm the motor is running correctly, and bypassing this fault could lead to motor damage or overheating. The dryer should remain out of service until the fault is properly diagnosed and repaired.

A power reset may temporarily clear the F-45 code, but if the underlying problem with the speed sensor or motor control electronics is still present, the fault will return when the dryer attempts to run again. Resetting is not a fix for this error. The root cause must be identified and corrected through proper diagnostic testing to resolve the issue permanently.

A knowledgeable DIYer may be able to address this fault if the cause is a loose connector or damaged wire, as these require only basic tools and inspection skills. However, if the speed sensor or motor control board needs replacement, the repair becomes more involved and requires comfort working with dryer internals. Following the specific diagnostic test referenced for this code is strongly recommended before purchasing any parts.

Repair costs vary depending on which component has failed. If the issue is a wiring connection, the cost may be minimal beyond a service call fee, typically in the range of $75 to $150. Replacing a speed sensor or motor control board will add parts costs, which generally range from $50 to $300 depending on the specific board or sensor required. Labor charges from a technician will add to the total.