Maytag Oven Error Code F-21

F-21 on a Maytag induction range is a supply power frequency error affecting the Induction Power Control system. It is classified as a Type 2 failure, which means all induction burners on the affected IPC module are disabled. The code indicates the IPC detected a frequency outside the acceptable 60 Hz specification, either due to a faulty Induction Power System module or an upstream electrical supply issue.

Disconnecting power to the range may temporarily clear the F-21 code, but if the underlying cause, such as a failed IPS module or an out-of-specification power supply, is not corrected, the error will return once the appliance is powered back on. A reset alone is not a fix for this code.

If the fix requires replacing the Induction Power System module, parts and labor costs typically range from $150 to $400 or more depending on the specific model and local labor rates. If the problem turns out to be the home's electrical supply, electrician diagnostic and repair costs will vary separately based on what is found. Getting a diagnostic estimate from a certified technician before committing to repairs is advisable.

The first step is to unplug the range or disconnect power, then replace the Induction Power System module. This repair involves working with high-voltage components, so comfort with appliance disassembly and electrical safety practices is important. If the error persists after replacing the IPS, the issue is with the home's electrical supply and requires a licensed electrician, not further DIY work on the appliance.

The F-21 code specifically disables all induction burners on the affected IPC module, so surface cooking will not be available. If your range also has a separate oven cavity, that function may still operate depending on the model, but you should resolve the power frequency issue before relying on the appliance further. Continuing to run the range with a known power quality problem is not recommended.