GE Cooktop Error Code F6x

The F6x code on a GE radiant cooktop means the User Interface board and the Machine Control board have lost communication with each other. This prevents the cooktop from operating safely because the two boards can no longer coordinate control signals. The fault is typically caused by a wiring issue between the boards or a failure in one of the boards themselves.

A reset by cutting power at the breaker for several minutes may temporarily clear the F6x code, but if the underlying communication fault is still present, the error will return once the cooktop powers back on. A successful repair requires identifying and correcting the root cause, whether that is a loose wiring connection or a failed control board. Resetting alone is not a fix.

Repair costs vary depending on which component has failed. If only a wiring connection needs to be reseated, the repair may involve minimal cost beyond a service call fee, typically in the range of $75 to $150. Replacing the Machine Control board or Display Board will add parts costs, which can range from $100 to $350 or more depending on the specific model, plus labor if a technician performs the work.

A knowledgeable DIYer can begin by inspecting and reseating the wiring harness between the UI and Machine Control boards, which requires powering down the cooktop and accessing the control area. If the wiring appears intact and secure, replacing the control boards involves working with electrical components, which many homeowners prefer to leave to a qualified appliance technician. If you are not comfortable working inside the appliance, professional service is the safer choice.

You should not attempt to use the cooktop while the F6x error is displayed. Because the User Interface and Machine Control boards cannot communicate, the cooktop cannot reliably control power to the heating elements. Operating it in this state creates a risk of unpredictable behavior from the heating zones.