Kenmore Range Error Code F3 E7

F3 E7 on a Kenmore range indicates the warming drawer temperature sensor has a short circuit condition. The control board monitors the sensor's resistance and triggers this code when it detects a reading outside the acceptable range. This typically points to a failed sensor, damaged wiring, or a loose connector in the warming drawer sensor circuit.

The main oven and cooktop burners may continue to operate while F3 E7 is active, but the warming drawer function will be unreliable or disabled since its temperature sensor is not providing valid readings. It is best to avoid using the warming drawer until the fault is resolved to prevent potential overheating in that compartment.

If only the warming drawer thermistor needs replacement, parts typically cost in the range of $20 to $60 depending on the specific model. If a professional technician is needed, labor charges will add to that total, generally bringing the overall repair cost to somewhere between $100 and $250. Wiring harness repairs or control board replacement would increase costs further.

A knowledgeable DIYer can address this fault by first disconnecting power, removing the back panels, and inspecting the sensor connector and wiring harness for visible damage or loose connections. Testing the thermistor with a multimeter to check resistance is the next step. If the sensor has failed, replacing it is a straightforward repair, though working inside the range does require comfort with basic electrical components.

Unplugging the range or disconnecting power for a few minutes may temporarily clear the code, but it will return if the underlying sensor or wiring problem is not corrected. A reset does not repair a shorted thermistor or damaged harness. The fault should be properly diagnosed and repaired to prevent the code from recurring.