Kenmore Range Error Code F31

F31 indicates a shorted RTD sensor probe or a wiring problem in the oven temperature sensing circuit. The code appears when the oven is in an active mode or when you attempt to start a cooking function. The control board detects an out-of-range resistance reading and disables the oven to prevent unsafe operation. Diagnosis involves checking the RTD sensor, the wiring harness, and if necessary, the analog control board.

The oven will not allow active cooking modes to operate while F31 is displayed, which is a built-in safety response. You should not attempt to bypass this fault. The shorted sensor means the control board cannot accurately monitor oven temperature, so operating the oven in this condition would be unsafe. Address the underlying cause before using the oven again.

Repair costs vary depending on which component is at fault. Replacing an RTD sensor probe is generally the least expensive fix, with parts typically ranging from around 20 to 60 dollars plus labor. If the analog control board requires replacement, parts costs can range from 100 to 300 dollars or more depending on the model, with additional labor costs if a technician performs the repair.

A reset may temporarily clear the code if the fault was caused by a transient condition. The recommended first step is to let the oven cool completely and then restart the function. If F31 returns when you attempt to use a cooking mode, the problem is persistent and requires hands-on diagnosis and likely a component replacement.

Start by letting the oven cool fully and attempting to restart the cooking function to see if the code clears on its own. If it persists, the next step is to inspect the RTD sensor probe and its wiring harness for damage, corrosion, or loose connections. If the sensor and wiring appear intact, the analog control board may need to be replaced. A repair technician can use a multimeter to test resistance values and pinpoint the failed component.