Dacor Range, Oven, Cooktop Error Code L50

The L50 code means the control board did not detect closure of the lock switch on the lower oven door latch during a locking sequence, most commonly triggered when starting a self-clean cycle. The oven requires confirmation that the door is fully latched before allowing high-temperature cleaning operation. The code points to a problem in the latch assembly, its motor, the lock switch, or the wiring connecting those components to the control board.

Normal baking and cooking functions may still be usable depending on how the control board responds to the fault, but you should not attempt to run a self-clean cycle while the L50 code is active. The self-clean cycle reaches extreme temperatures and the latch is designed to keep the door secured during that process. Continuing to use self-clean without a confirmed locked door could create a safety hazard.

Repair costs vary depending on which component has failed. A replacement door latch assembly or lock switch typically runs in the range of $50 to $150 for the part alone. If a technician is needed for diagnosis and installation, total costs including labor generally fall in the range of $150 to $400, though complex wiring repairs or a control board replacement could push costs higher.

Some causes of the L50 code are DIY-friendly, such as clearing debris from the latch area or reseating a loose wiring connector. However, replacing the door latch assembly or lock switch requires disassembling the oven door or inner cavity panels and working near high-voltage components, so comfort with appliance repair is important. If you are not experienced with appliance electrical diagnosis, a qualified technician is the safer choice.

Cycling power to the oven by turning off the circuit breaker for a few minutes may temporarily clear the code, but if the underlying problem with the latch or lock switch is not resolved, the code will return the next time a self-clean cycle is initiated. A reset is useful for confirming whether the fault is intermittent, but it is not a repair.