Dacor Range, Oven, Cooktop Error Code L52

L52 indicates a fault in the lower oven door latch system. The control board is not receiving the correct feedback signals from the door lock switches, which are needed to confirm that the latch has moved to a locked or unlocked position. This fault is most often caused by bad lock switches or a faulty relay board.

Normal bake and broil functions may still operate, but the self-clean cycle will be disabled or interrupted when L52 is active. You should resolve the fault before attempting a self-clean cycle, since the door locking system is a safety feature that prevents the oven door from being opened at dangerously high self-clean temperatures.

Repair costs vary depending on the faulty component. Replacement door latch switch assemblies typically range from $30 to $80 in parts, while relay boards can range from $100 to $250 or more depending on the model. Adding professional labor, total repair costs commonly fall between $150 and $400, though this can vary based on your location and the specific parts required.

A knowledgeable DIYer can inspect the latch assembly for obstructions, check wiring harness connectors for corrosion, and test switch continuity with a multimeter. However, replacing the relay board or latch motor assembly involves working near high-voltage components, so a qualified technician is recommended if you are not comfortable with those repairs.

Cycling power to the oven by turning off the circuit breaker for one to two minutes may temporarily clear the code, but it will return if the underlying hardware fault is not corrected. A persistent L52 code indicates a real component issue, such as a failed switch or relay board, that requires physical inspection and repair.