Dacor Range, Oven, Cooktop Error Code U50

U50 means the oven control detected that the door lock switch did not close when the oven attempted to lock the door, typically at the start of a self-clean cycle. The control board expects a confirmation signal from the lock switch once the latch bolt reaches its locked position, and U50 is set when that signal is absent. The oven stops the cycle to prevent operating in an unconfirmed state. The problem usually lies with the latch assembly, the lock switch, the latch motor, or the connecting wiring.

Normal baking and broiling functions may still be available since U50 is specifically related to the door locking circuit used during self-clean cycles. However, you should not attempt to run a self-clean cycle while the fault is active, as the door lock is not functioning properly. Until the latch issue is resolved, the self-clean mode will not operate safely or correctly.

A power reset, such as turning off the circuit breaker for one to two minutes and restoring power, may temporarily clear the U50 code from the display. However, if the underlying problem with the latch assembly, lock switch, or wiring has not been corrected, the code will return the next time the oven attempts to lock the door for a self-clean cycle. A reset alone is not a repair and should not be relied upon as a solution.

In some cases, yes. If the latch mechanism is blocked by debris or grease buildup, cleaning the area around the latch assembly may resolve the issue without any parts replacement. If the lock switch or latch motor has failed, replacement is required and involves disassembling the top portion of the oven cavity, which is manageable for a technician or experienced DIYer comfortable working with appliance wiring. Always disconnect power before inspecting or servicing any internal components.

Repair costs vary depending on which component has failed. A replacement lock switch or latch assembly part typically ranges from around 30 to 150 dollars for the component alone. If a latch motor or control board is needed, parts costs can range from 80 to over 300 dollars. Adding professional labor, total repair costs generally fall between 150 and 500 dollars or more depending on the scope of the repair.