Maytag Range Error Code F9-3

F9-3 means the control board sent a command to lock the upper oven door but did not receive a confirmation signal back from the upper door lock switch. This fault appears almost exclusively when you start a self-clean cycle. The control board halts the cycle until the lock circuit issue is resolved.

Normal baking and broiling functions are typically still available because F9-3 is tied specifically to the self-clean door lock circuit. You should not attempt to run the self-clean cycle while this fault is active, as the oven will not lock the door and will abort the cycle anyway. If the range is otherwise cooking normally, you can continue using it for standard cooking until you complete the repair.

Unplugging the range for a minute and restoring power may temporarily clear the code, but F9-3 will return as soon as you attempt another self-clean cycle if the underlying issue with the lock wire harness or lock switch has not been fixed. A reset is useful for confirming the fault is repeatable, but it is not a repair.

Start by unplugging the range and locating the wire harness that runs from the upper door lock assembly to the control board. Check for loose connectors, burnt wires, or pinched sections and repair or reseat them as needed. If the harness is intact, test the door lock switch for continuity with a multimeter. A switch with no continuity when the latch is in the locked position needs to be replaced. If both the harness and switch are fine, the door lock motor assembly is the next part to replace.

If the fix is a loose or reseated wire connector, there is no parts cost. A replacement door lock switch typically costs between $20 and $50 for the part. A full door lock motor assembly generally runs $40 to $100 depending on the model. If you hire a technician, expect a service call fee of $75 to $150 plus labor, which can add another $50 to $100 on top of parts. The repair is manageable as a DIY job if you are comfortable using a multimeter and working with appliance wiring.