Kenmore Refrigerator Error Code IS E

IS E indicates an icing sensor error caused by either a short circuit or an open circuit in the icing sensor wiring. The control board cannot receive a valid signal from the sensor and flags the fault. The problem is most often traced to connector CON8 on drawer models or CON4 on swing-door models, though the sensor itself can also fail.

A power reset may temporarily clear the code, but if the underlying wiring fault or sensor failure is still present, the IS E error will return. The reset does not repair the circuit. A proper fix requires diagnosing and resolving the short or open circuit condition in the icing sensor wiring.

If the fix is simply reseating a loose connector, there is no parts cost involved. Replacing a damaged wiring harness section or the icing sensor itself typically runs anywhere from $30 to $150 or more for parts depending on the specific model. Adding a professional technician for diagnosis and labor can bring the total repair cost to the $100 to $300 range.

If the cause is a loose connector, you may be able to resolve it by locating CON8 or CON4 and firmly reseating the connection. Beyond that, you will need a multimeter to check resistance between the Red and Orange wires on the icing sensor circuit. If readings indicate an open or short circuit in the harness or sensor, replacing those components typically requires some technical comfort with appliance wiring.

The IS E code is not a safety emergency. It indicates a sensor monitoring fault, not a refrigerant leak or electrical hazard. Your refrigerator will likely continue cooling, but the icing sensor function will be impaired, which could affect frost management in the affected compartment. Addressing the fault promptly will prevent any secondary issues from developing.