Kenmore Oven Error Code F82

F82 indicates a microwave thermistor open error. The control board is unable to read a valid temperature from the thermistor inside the microwave cavity. This can be caused by a failed convection heating element, a defective thermistor, damaged wiring, or a faulty control board. The appliance will not operate normally until the root cause is diagnosed and repaired.

It is not recommended to continue using the appliance while this error is active. The F82 code means the oven cannot accurately monitor cavity temperature, which could result in uncontrolled heating during convection cycles. Discontinue use until the faulty component is identified and replaced.

Resetting the oven by disconnecting power for several minutes may temporarily clear the F82 code, but the error will return if the underlying problem is not fixed. A reset does not repair a failed convection element, a defective thermistor, or damaged wiring. Proper diagnosis and component replacement are required for a lasting repair.

Some steps, such as inspecting wiring connections and testing component resistance with a multimeter, are manageable for a knowledgeable DIYer. Testing the convection element for approximately 10.2 ohms of resistance and checking the thermistor for continuity are good starting points. However, if the control board needs replacement, the job becomes more complex and professional service may be advisable. Always disconnect power before inspecting internal components.

Repair costs depend on which component has failed. A replacement thermistor typically costs between $15 and $50 for the part alone. A convection element can range from $30 to $100 or more depending on the specific model. Control board replacements are the most expensive option, often ranging from $100 to $300 or higher for the part. Adding professional labor costs will increase the total significantly.