Kenmore Range Error Code 4d52

Error code 4d52 means the lower oven door switch is in an indeterminate state and the control board cannot confirm whether the door is open or closed. In response, the oven disables convection cooking, the self-clean cycle, the door locking function, and turns off the oven interior light. The most common causes are a faulty switch, a misaligned switch, or a wiring issue between the switch and the control board.

Basic baking and broiling functions may still operate, but convection cooking and the self-clean cycle are disabled while this code is active. Because the oven cannot confirm door position, using high-heat or locked-door functions is not advisable until the fault is resolved. It is best to address the underlying switch or wiring issue before resuming full oven use.

Resetting the oven by cutting power at the breaker for a few minutes may temporarily clear the code, but it will return if the underlying switch or wiring problem has not been corrected. The code is triggered by an active hardware fault, not a software glitch, so a reset alone is not a solution. The door switch and its wiring need to be inspected and repaired or replaced to permanently resolve the error.

A knowledgeable DIYer can start by inspecting the door switch for visible damage, checking that it is properly aligned with the door, and reseating any loose wiring connectors. If the switch needs to be tested for continuity or replaced, basic electrical diagnostic skills and a multimeter are required. If the wiring harness or control board is involved, professional repair is recommended.

If only the door switch needs replacement, parts typically range from around $15 to $60 depending on the model, and the repair is relatively straightforward. If a wiring harness repair or control board replacement is required, total repair costs including labor can range from $150 to $400 or more. Getting a diagnosis before ordering parts helps avoid unnecessary expenses.