Wolf Oven Error Code Cooling Fan triac open

This fault means the triac, which is the semiconductor switch on the relay module that controls the cooling fan, has failed in an open state and can no longer pass current to run the fan. The oven's control system detected that the cooling fan circuit is not functioning correctly. A technician will need to check the wiring connections at the relay module and, in most cases, replace the relay module itself.

Operating the oven with a non-functional cooling fan is not recommended. The cooling fan protects internal electronics, the control board, and surrounding cabinetry from excessive heat during and after cooking cycles. Continued use without a working cooling fan could lead to additional component damage or create a heat-related hazard.

Repair costs vary depending on whether the issue is a loose connection or a failed relay module. If only a connection repair is needed, labor costs alone might range from roughly $100 to $200. If the relay module requires replacement, total costs including parts and labor typically range from $300 to $600 or more, depending on your location and the specific model.

A knowledgeable DIYer can start by checking all wiring connections at the relay module for looseness or corrosion, as a poor connection can trigger this fault. However, if the triac itself has failed, the entire relay module must be replaced, which involves working with high-voltage AC components. This repair is best handled by a qualified appliance technician if you are not comfortable with high-voltage work.

A power reset may temporarily clear the fault display, but it will not resolve the underlying hardware failure. If the triac on the relay module has failed open, the fault will return once the oven performs its diagnostic checks. The faulty relay module or the wiring connection issue must be physically corrected for the error to be permanently resolved.