Frigidaire Cooktop Error Code E18

E18 on a Frigidaire cooktop means the right front zone control key sensor has been detected as defective. The control board is unable to receive a valid signal from the touch sensor assigned to the right front cooking zone. This typically points to a wiring connection issue, a contaminated sensor, or a failed touch control panel.

Cycling power to the cooktop by turning off the circuit breaker for 30 seconds may temporarily clear the error, but E18 will return if the underlying sensor or connection fault is still present. A reset does not repair a defective sensor or a damaged cable, so it is only useful as a first check to determine if the fault is intermittent.

Repair costs vary depending on the faulty component. If only a cable connection needs reseating, you may incur only a service call fee, typically in the range of $75 to $150. Replacing a touch control panel generally costs $150 to $350 in parts and labor, while a main control board replacement can range from $200 to $450 or more depending on the specific model and labor rates in your area.

Some causes of E18 are accessible to a confident DIYer, particularly reseating a loose cable connector or cleaning contamination from terminals. However, accessing the internal wiring and control components requires disassembling the cooktop, which involves disconnecting power and working around line-voltage components. If you are not comfortable with appliance disassembly, a qualified technician should perform the diagnosis.

When E18 is active, the right front cooking zone is typically disabled by the control board as a safety response to the sensor fault. Other zones may still function, but operating the cooktop in a fault state is not recommended. You should resolve the error before relying on the appliance for normal cooking.