Maytag Dryer Error Code F5

The F5 error code on a Maytag dryer indicates a motor control circuit fault. Specifically, the control board has detected an abnormal condition within the motor relay circuit but cannot pinpoint whether the fault is a stuck motor relay, a short in the motor relay drive circuit, or a failure in the motor relay feedback circuit. As a safety and diagnostic measure, the control board immediately disables the cycle selection display and the price display (on applicable models) and locks them out until the error code is manually cleared by a technician.

The motor relay is the component responsible for switching power to the drive motor on and off under command from the control board. The relay drive circuit is the signal path the control board uses to energize that relay, while the feedback circuit is the return path that confirms to the control board whether the relay actually opened or closed. When any one of these three pathways behaves unexpectedly, the control interprets the ambiguity as a potential safety risk. A stuck relay, for example, could leave the motor running uncontrolled, while a shorted drive circuit could cause unintended relay activation.

Because the control board cannot self-diagnose which of the three sub-faults is responsible, hands-on diagnosis is required. A technician will need to inspect the wiring harness between the control board and the relay circuit for shorts or damaged insulation, test relay coil resistance and switching behavior, and evaluate control board output signals. If the relay itself has failed internally, or if the control board's relay drive or feedback circuitry is damaged, component replacement will be necessary to restore normal operation.