GE Oven Error Code F100

F100 on a GE oven indicates a processor failure within the upper Machine Control board. This is an internal fault in the board's computing hardware, not an external sensor or wiring issue. The oven cannot operate normally while this fault is active. Replacement of the upper Machine Control board is the required repair.

No, the oven should not be used while displaying F100. A processor failure on the Machine Control board means the oven's core logic is not functioning correctly, and normal safety controls and temperature regulation may not be operating reliably. Disconnect power to the oven until the board is replaced.

Repair costs vary depending on the specific GE model and whether you hire a technician or do the repair yourself. A replacement upper Machine Control board typically costs in the range of $150 to $350 for the part alone. If you hire a technician, labor charges will add to that cost, bringing total repair estimates to roughly $250 to $550 or more depending on your region and service provider.

The F100 error requires replacing the upper Machine Control board, which is a task that experienced DIYers comfortable with appliance disassembly can attempt. The repair involves disconnecting power, accessing the control board location, and carefully swapping the board and its wiring connectors. If you are not confident working with appliance electronics, a qualified technician is the safer option.

Resetting the oven by cutting power at the breaker and restoring it will not resolve the F100 error in most cases. Because the fault is an internal hardware or firmware failure within the processor itself, the error will return after power is restored. Board replacement is required to clear the code permanently.