Frigidaire Range Error Code F018

F018 indicates a failure of the oven relay board, also called the wiggler board, which controls power switching to the bake and broil elements. The control system has detected that this board is not operating correctly. The oven will typically be disabled until the fault is resolved. Replacing the relay board is the primary repair for this code.

Operating the oven while F018 is active is not recommended. A failed relay board can result in heating elements not cycling correctly, which poses a risk of overheating or uncontrolled heat. The stovetop burners may still function depending on the model, but the oven should remain unused until the relay board is replaced and the fault is cleared.

The cost of repair depends on the specific model and whether you hire a technician or do the repair yourself. Relay board parts for Frigidaire ranges typically fall in the range of $60 to $200 depending on the model. If you hire a technician, labor costs generally add $100 to $250 on top of the part price. Doing the replacement yourself can significantly reduce the total expense.

Replacing the oven relay board is a repair that a confident DIYer can perform if they are comfortable working with appliance wiring and following safety precautions. The range must be fully unplugged before starting any work. That said, if you are uncertain about identifying the correct board location or handling electrical components, hiring a qualified technician is the safer choice.

A power reset by unplugging the range or switching off the circuit breaker for a few minutes may temporarily clear the F018 code, but it will almost certainly return if the relay board is actually faulty. The fault code is triggered by a hardware failure, not a software glitch, so resetting alone does not fix the underlying problem. The relay board needs to be replaced to permanently resolve the error.