Maytag Oven Error Code F-42

F-42 indicates a Type 2 induction cooktop power supply failure. The control has detected that the induction system is not receiving proper voltage at one or more points in its power delivery chain, which includes the main supply connection, the EMI filter board, and the IPC boards. The cooktop will not operate while this fault is active.

The induction cooktop will not function normally when F-42 is active, and attempting to operate it in this state is not recommended. Because this fault involves the high-voltage power supply to the induction system, continuing to use the appliance without diagnosis could risk further component damage. The oven bake and broil functions may still operate depending on the model, but the cooktop should not be relied upon until the fault is resolved.

Repair costs vary depending on the root cause. If the issue is a tripped breaker or loose connection, costs may be minimal. An EMI filter board replacement typically runs in the range of $80 to $200 for the part alone, while an IPC board can range from $150 to $400 or more depending on availability. Adding professional labor, total repair costs commonly fall between $150 and $600 depending on which components need replacement and your location.

Some steps, like checking the circuit breaker or verifying that the oven is receiving 240 VAC at the wall, are safe for a homeowner to perform. However, diagnosing voltage at internal components like the EMI filter board and IPC boards involves working with live 240 VAC circuits inside the appliance, which requires proper training and safety equipment. Internal component replacement should be handled by a qualified technician.

Resetting the oven by cutting power at the breaker for a few minutes may temporarily clear the code, but if the underlying power supply issue is still present, the F-42 error will return. A reset is useful for ruling out a one-time glitch, but a recurring F-42 code requires voltage testing and component inspection to resolve permanently.