Maytag Range Error Code 4d52

Code 4D52 means the control board has detected a door switch circuit failure in the lower oven cavity. The board is unable to determine whether the door switch is open or closed, which indicates a problem with the switch itself, the wiring harness, or the connectors in that circuit. The control board triggers this fault to prevent operating the oven with an unknown door state.

Start by inspecting the door switch circuit and wiring harness on the lower oven cavity. Check the wire harness running from the door switch to the control board for any signs of fraying, burning, or disconnection, and reseat any loose connectors. If the wiring looks intact, use a multimeter to test the door switch for continuity in both open and closed positions. A switch that does not change state should be replaced. If the switch and wiring both test correctly, the control board may need replacement.

Yes, a loose or disconnected wire at the door switch or at the control board connector is one of the most common causes of the 4D52 code. Because the board cannot confirm a valid open or closed signal, even a partially disconnected connector is enough to trigger this fault. Reseating all connectors in the door switch circuit is a good first step before replacing any parts.

Using the range with 4D52 active is not recommended for oven functions. The control board cannot confirm door position, which can interfere with broil operation, the self-clean cycle, and other oven functions that depend on door state. Surface burners on a gas or electric range may still operate, but the lower oven should not be used until the door switch circuit is repaired.

A replacement lower oven door switch typically costs between $15 and $40 for the part, making it one of the more affordable fixes if you can replace it yourself. A wiring harness repair or connector replacement may cost little to nothing beyond your time. If the control board is the cause, board replacement can run $150 to $350 or more for the part alone. Adding professional labor, expect a total repair cost anywhere from $100 to $500 depending on the actual failed component.