Kenmore Range Error Code 1c31

Error code 1c31 indicates that the control board detected an incorrect key value from the upper cavity keypad and canceled that input as a safety measure. As a result, the control board disables all outputs for the upper oven cavity, meaning the upper oven will not heat. The fault points to a problem with the keypad, the ribbon cable connecting it to the control board, or the control board itself.

Because the 1c31 fault disables all outputs for the upper oven cavity, that portion of the range will not operate while the code is active. The range is designed to prevent unintended heating when a corrupted key signal is detected, so there is no risk of the upper oven running unexpectedly. Lower cavity functions, if your range has them, may still be operational, but you should address the fault before relying on the appliance for regular use.

Repair costs vary depending on which component has failed. A replacement keypad membrane typically runs in the range of $30 to $100 for parts, while a new control board can cost anywhere from $150 to $400 or more depending on the specific model. If you hire a technician, add labor costs of roughly $80 to $150 per hour on top of parts. Getting a diagnosis before ordering parts helps avoid unnecessary expense.

A knowledgeable DIYer can handle some steps, such as checking the ribbon cable connection between the keypad and control board for looseness or damage. Replacing the keypad membrane is also a manageable repair for someone comfortable working with appliance control panels. However, if the control board's input circuitry has failed, board replacement is more involved and may benefit from professional service.

A power reset, done by unplugging the range or switching off the circuit breaker for one to two minutes, may clear the code if the fault was caused by a temporary electronic glitch. However, if the keypad membrane is physically worn, contaminated, or the control board has a hardware defect, the code will return after the reset. A reset is a reasonable first step, but a recurring 1c31 code requires component-level diagnosis.