GE Cooktop Error Code F81

F81 on a GE electronic control radiant cooktop indicates a Machine Control microprocessor error. The main control board has detected an internal failure within its processing circuitry. This fault means the board cannot operate reliably and needs to be replaced.

A power cycle by turning off the circuit breaker for one to two minutes may temporarily clear the F81 code, but the fault will almost always return because the underlying microprocessor failure remains. A reset does not repair a failed control board. Replacement of the Machine Control board is the only lasting solution.

Repair costs depend on the specific cooktop model and whether you hire a technician or replace the board yourself. Machine Control boards for GE cooktops typically range from around 80 to 300 dollars for the part alone, depending on the model. Professional labor to diagnose and install the board can add 100 to 200 dollars or more to the total cost.

The fix for F81 is replacing the Machine Control board, which is a task that requires disconnecting power to the appliance and handling internal electronic components. A technician with experience in appliance electronics is recommended. If you are comfortable with appliance disassembly and working safely with disconnected power, board replacement is the correct repair path.

You should not continue using the cooktop while F81 is active. A Machine Control microprocessor error means the board governing element power and operational logic has failed. Operating the cooktop in this condition is unpredictable and could pose a safety risk. Disconnect power until the board is replaced.