GE Cooktop Error Code FA5

FA5 on a GE induction cooktop means the control board has detected a bad reading from the coil thermistor, which is the temperature sensor built into the induction coil assembly. The cooktop shuts down to prevent potential damage from unmonitored heat. Diagnosis involves inspecting the thermistor, induction tray, and associated wiring, with coil replacement being the typical repair.

No, you should not attempt to continue using the cooktop while FA5 is active. The error means the cooktop can no longer reliably monitor coil temperature, which removes a key safety protection against overheating. Keep the unit powered off until the fault is diagnosed and repaired.

Resetting the cooktop by cutting power at the breaker may temporarily clear the FA5 code, but the error will return if the underlying problem with the coil thermistor or induction tray has not been resolved. A reset is useful for confirming whether the fault is intermittent, but it is not a fix for the root cause.

A knowledgeable DIYer can inspect the wiring harness and connectors leading to the coil thermistor for obvious damage or loose connections. However, if the coil assembly itself needs to be replaced, this involves working inside the cooktop with high-voltage components and requires comfort with appliance disassembly. If you are not experienced with appliance repair, a qualified technician is the safer choice.

Repair costs depend on the specific cause. If only a wiring connection needs to be reseated, costs may be limited to a service call fee, typically in the range of $75 to $150. If the induction coil assembly requires replacement, parts alone can range from $100 to $300 or more depending on the model, plus labor if a technician is performing the repair.