KitchenAid Oven Error Code F103

F103 means the control board or its heat sink has reached or exceeded 100 degrees Celsius, as measured by the NTC thermistor attached to that component. The oven triggers this code to protect its electronics from heat damage. When the fault occurs, the board shuts off most loads and activates thermal protection routines for the cooling fan and door lock.

No, you should not continue using the oven until the cause of F103 is identified and corrected. The fault indicates the control electronics are overheating, and continued operation could cause permanent damage to the control board or create a fire hazard. Leave the oven off and allow it to cool fully before any inspection.

Repair costs depend on the root cause. Replacing a cooling fan motor typically ranges from $75 to $200 including parts and labor. An NTC thermistor replacement is usually less expensive, often in the $50 to $150 range. If the control board itself needs replacement, costs can range from $200 to $500 or more depending on the specific model and labor rates in your area.

Some causes of F103, such as blocked vents or inadequate clearance around the oven, can be addressed without a technician. However, diagnosing a failed cooling fan, a faulty NTC thermistor, or a defective control board requires electrical testing and component handling that is safer with professional experience. If basic ventilation checks do not resolve the fault, a qualified appliance technician should perform the diagnosis.

A reset may temporarily clear the F103 code, but if the underlying cause such as a failed cooling fan or blocked ventilation is not resolved, the fault will return. Resetting without diagnosing the root cause can lead to repeated fault cycles and eventual control board failure. Always investigate the cause before relying on a reset.