Kenmore Refrigerator Er SS Error — Temperature Sensor Short Circuit
The Er SS error code means a temperature sensor in the refrigerator has developed a short circuit condition, returning a resistance reading near zero when it should read several thousand ohms. The control board cannot accurately read temperatures in the affected compartment.
Impact on Operation
With a shorted sensor, the refrigerator may run the compressor and fans at maximum capacity trying to reach a “normal” temperature reading, or it may shut down cooling altogether. Either scenario leads to temperature instability and potential food spoilage.
Identifying the Shorted Sensor
Kenmore refrigerators typically have multiple sensors: fresh food compartment sensor, freezer sensor, and defrost sensor. The control board diagnostics on most models can identify which sensor has failed. Alternatively, each sensor can be disconnected individually and resistance tested.
Replacement
Sensor replacement is generally simple but requires identifying the exact sensor location for your model. Our technicians carry the full range of Kenmore refrigerator sensors and verify all compartment temperatures after replacement.