Maytag Range Error Code F6

The F6 error code on a Maytag range indicates that the control board's AC line cycle detector is not receiving the expected signal from the incoming power supply. The control board continuously monitors the alternating current cycles from the household power line, and when it fails to detect those cycles for a sample period of one minute, it automatically resets itself to a non-cook mode as a safety measure. Notably, this fault does not trigger an audible alarm, so it may go unnoticed until the range stops responding to cooking commands.

The AC line cycle detector is a circuit within the electronic control board that tracks the zero-crossing points of the 60 Hz AC waveform. These crossings are used as a timing reference for the control logic. If the detector receives no cycles, it interprets the condition as a loss of valid AC reference, which can be caused by a disrupted power supply, a faulty connection at the terminal block, or a failed component within the control board itself.

Common triggers include intermittent power interruptions, a loose or corroded neutral wire at the range's terminal block, a failing main control board, or problems with the line filter or power supply components that feed the detection circuit. Because the reset is silent and automatic, technicians should treat any unexplained loss of cooking function as a potential F6 event and begin diagnosis at the incoming power connections before evaluating the control board.