Dacor Range, Oven, Cooktop Error Code L24

L24 indicates an over-temperature fault in the lower oven caused by an open circuit in the ambient temperature probe on the relay board. The relay board has a built-in probe that monitors heat levels around the board, and when that probe circuit reads open, the oven triggers L24 and shuts down. This is a protective measure to prevent damage to the control electronics.

No, you should not attempt to operate the oven while L24 is active. The fault indicates that the control system cannot properly monitor ambient temperature around the relay board, meaning a genuine over-temperature condition could go undetected. Continued operation without resolving the fault risks damage to the control board and could create a safety hazard.

Repair costs depend on the root cause. If only a connector needs cleaning or reseating, the cost may be limited to a service call fee, typically in the range of $75 to $150. If the relay board requires replacement, parts and labor combined can range from $250 to $600 or more depending on the specific model and local labor rates.

Some basic checks are possible for a knowledgeable DIYer, such as inspecting the wire harness connectors at the relay board for looseness or corrosion and reseating them. However, if the ambient probe itself has failed, the relay board typically needs to be replaced, which requires safely accessing the oven's control components and working with electrical connections. If you are not comfortable with appliance electrical repairs, a qualified technician is recommended.

A power reset by shutting off the circuit breaker for 30 to 60 seconds may temporarily clear the fault display, but if the underlying cause is an open ambient probe or damaged wiring, the L24 code will return as soon as the oven restarts. A reset alone does not repair the probe circuit and is not a lasting solution.