GE Range Error Code F098

F098 indicates that the NTC temperature sensor mounted on the magnetron case has shorted internally. The NTC sensor is a thermistor that monitors the magnetron's operating temperature to prevent overheating. When it shorts, the resistance collapses and sends an invalid signal to the control board, which then disables the microwave circuit and displays this code.

The microwave function will be disabled while this error is active, which is a built-in protective measure. The oven and surface burner functions may still operate depending on your model, but the appliance should be serviced before continued use. Operating a range with a known sensor fault and bypassing the safety system is not recommended.

Resetting the range by cycling power may temporarily clear the code from the display, but the fault will return as soon as the control board reads the shorted sensor again. A power reset does not fix the underlying hardware failure. The NTC sensor or associated wiring must be inspected and repaired or replaced for the code to clear permanently.

A knowledgeable DIYer can attempt this repair, but it involves working near the magnetron, which stores high voltage even when unplugged. The primary fix is replacing the NTC sensor on the magnetron case. Before replacing the sensor, you should also inspect the wiring harness for damage or shorts, as a harness problem can mimic a sensor failure.

If only the NTC sensor requires replacement, parts typically range from around $15 to $60 depending on the specific model. If a technician performs the repair, total costs including labor generally fall between $100 and $250. More complex repairs involving wiring harness replacement or control board damage will push costs toward the higher end of that range.