GE Range Error Code F46

F46 indicates that the cooling fan in the upper oven cavity is running at a higher speed than the control system expects. On Microcombi models, it refers to the lower cavity fan instead. The code is triggered when the control board detects fan RPM outside the normal operating range. The first step is checking for any physical obstruction in the airflow path.

Continued use is not recommended. The cooling fan protects the control electronics from heat damage, and an over-speed condition suggests the thermal management system is not operating correctly. Running the range in this state risks damaging the control board or other electronic components, which can turn a simpler repair into a much more expensive one.

Repair costs vary depending on what component has failed. If the fix is simply clearing a blockage, costs are minimal. A replacement cooling fan motor typically runs in the range of $50 to $150 for the part, with additional labor costs if a technician is doing the work. A control board replacement is more expensive, generally ranging from $150 to $400 or more depending on the model.

Clearing a physical obstruction from the air path is something many homeowners and DIYers can handle safely after disconnecting power to the range. However, testing and replacing the fan motor, wiring harness, or control board requires comfort with electrical diagnosis and should be handled by a qualified technician if you are not experienced with appliance repair.

A reset by cutting power to the range for a few minutes may temporarily clear the code, but it will return if the underlying cause has not been resolved. Resetting without fixing the root problem, whether a blocked air path, a bad fan motor, or a wiring issue, does not address the condition that triggered F46 in the first place.