Whirlpool Cooktop Error Code F-12 E-12

F-12 E-12 indicates a coil under-current fault on the power control board affecting one specific burner, classified as a Type 1 failure. The board has detected that current through the burner coil is below the expected operating level. This causes the cooktop to disable that burner as a protective measure. The fault most often points to a loose or damaged connection at the T2A/T2B or T3A/T3B terminals on the power control board.

The affected burner will be disabled by the cooktop when this code is active, so using that specific zone is not possible. The remaining burners may still function, but it is best to have the fault diagnosed and repaired promptly. Operating appliances with unresolved electrical faults carries risk, and continued use could worsen the underlying problem.

Repair costs vary depending on what component is at fault. If the issue is simply a loose connector, a service call fee in the range of $75 to $150 may be the only cost. A replacement burner coil assembly typically adds $50 to $200 in parts, while a new power control board can range from $150 to $400 or more depending on the model. Labor costs will vary by region and service provider.

A knowledgeable DIYer can attempt the first diagnostic step by disconnecting power and inspecting the burner's terminal connections on the power control board. If a loose connector is found and reseated, the repair is straightforward. However, if the wiring harness, burner coil, or power control board needs replacement, professional service is recommended to ensure safe reassembly of high-voltage components.

Disconnecting power briefly may clear the error code temporarily, but if the underlying cause such as a loose connection, damaged coil, or faulty board has not been corrected, the code will return when the burner is used again. A reset alone is not a repair and should only be used as part of the diagnostic process after addressing the root cause.