Frigidaire Range Error Code F7 12

F7 12 means the control board has detected that the potentiometer for the Left Front burner is sending a value outside its expected range. The potentiometer is the sensor inside the control panel that reads the position of the burner knob. This fault indicates the board can no longer reliably interpret that knob's input and the issue needs to be diagnosed before normal operation can resume.

It is not advisable to rely on the Left Front burner while this fault is active, since the control board is indicating it cannot accurately read the burner knob position. Using a burner whose control signal is unreliable could result in unintended heat levels. Other burners not affected by the fault may still function normally, but the range should be repaired promptly.

Resetting the range by cycling power at the breaker may temporarily clear the fault code, but the error will return if the underlying cause has not been addressed. If moisture was the trigger, the fault might not return once the area fully dries out. In most cases involving a failed potentiometer or UIB, the code will come back and a component repair or replacement is required for a lasting fix.

A knowledgeable DIYer can attempt some of the initial diagnostic steps, such as inspecting the wiring harness for damage, checking for moisture around the Left Front control knob, and reseating connectors. However, accurately testing a potentiometer requires a multimeter and some familiarity with reading resistance values. Replacing the UIB is a more involved repair and may be best left to a qualified technician, especially if basic checks do not resolve the fault.

Repair costs vary depending on the failed component. A replacement potentiometer is generally an inexpensive part, with costs typically ranging from around $10 to $40 for the component alone. If the User Interface Board requires replacement, parts costs can range from $80 to $250 or more depending on the model. Adding professional labor will increase the total, usually ranging from $100 to $300 for the full repair job.