Kenmore Refrigerator Error Code rt E

The rt E code indicates a room temperature sensor error caused by a short circuit or open circuit in the sensor or its wiring. The control board cannot receive a valid signal from this sensor and flags the fault. Diagnosis involves checking the sensor, its connector, and the wiring harness leading to the control board.

The rt E error is not an immediate safety hazard, but it can affect how efficiently your refrigerator manages cooling. If the control board cannot read ambient room temperature accurately, compressor and fan cycles may not be optimized. It is best to address the fault promptly to avoid potential food spoilage or unnecessary energy consumption.

Repair costs depend on the root cause. If only the room temperature sensor needs replacement, parts typically range from around $15 to $50, with labor adding to the total if a technician is involved. A damaged wiring harness repair may fall in a similar range, while a control board replacement can cost significantly more, often between $100 and $300 or higher for parts alone.

Start by locating the room temperature sensor and inspecting its connector for looseness, corrosion, or damage. Reseat the connector and check if the error clears. If the code returns, use a multimeter to test the sensor's resistance. A sensor reading as open or shorted will need to be replaced, and damaged wiring should be repaired or replaced as well.

A reset may temporarily clear the rt E code, but if the underlying sensor fault still exists, the code will return once the control board runs its diagnostic checks again. A reset is useful for ruling out a one-time communication glitch, but a persistent rt E code requires physical inspection and testing of the sensor and its wiring.