KitchenAid Cooktop Error Code e4

The E4 code means the cooktop's NTC temperature sensor has been detected as shorted. The NTC sensor is a thermistor that the control board uses to monitor surface temperature. When it shorts, the resistance signal it sends drops abnormally low, causing the board to trigger this fault. The cooktop may disable the affected cooking zone until the issue is resolved.

You should not continue using the cooktop while E4 is active. The error indicates the temperature sensor is not functioning correctly, which means the cooktop cannot reliably regulate heat on the affected zone. Operating it in this condition could create an overheating hazard. Stop using the unit until the sensor is inspected and replaced.

A reset by powering the cooktop off at the breaker may temporarily clear the E4 code, but the error will return if the underlying sensor fault is not repaired. Because E4 indicates a hardware failure, a shorted NTC sensor, no amount of resetting will resolve it permanently. The sensor or its wiring must be inspected and replaced to clear the fault for good.

A knowledgeable DIYer can attempt this repair, but it does require disassembling part of the cooktop to access the NTC sensor and its wiring. Start by inspecting the sensor harness for visible damage. If the wiring looks intact, replacing the NTC sensor is the recommended fix. If you are not comfortable working with appliance electronics, a qualified technician should perform the repair.

If you replace the NTC sensor yourself, part costs typically range from $20 to $60 depending on the model. If you hire a technician, expect to pay between $100 and $250 in total, covering both the part and the service call. Control board replacement, if needed, can push costs higher, generally ranging from $150 to $400 or more.