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Kenmore Refrigerator Er OS Error Code — Open Sensor

Kenmore Refrigerator Error Code Reference

ER OS

Kenmore Refrigerator Er OS Error Code — Open Sensor

Kenmore Refrigerator

Medium Severity
Warning: If your Kenmore appliance displays the ER OS error code and you are unsure how to proceed, turn off the appliance and contact a qualified technician. Some errors require professional repair to avoid further damage or safety risks.

Kenmore Refrigerator Er OS Error — Temperature Sensor Open Circuit

The Er OS error code is the opposite of Er SS — instead of a short circuit (too-low resistance), Er OS indicates an open circuit (infinite resistance) in a temperature sensor. An open sensor means the sensor wire has broken, the sensor connector is disconnected, or the sensor has internally failed in the open state.

Common Causes

  • Sensor wire harness pulled loose during shelf rearrangement or cleaning
  • Wire chafed against a sharp edge inside the refrigerator cavity
  • Sensor exposed to moisture ingress causing internal corrosion
  • Physical damage to the sensor probe

Quick Check

Before replacing a sensor, visually inspect all sensor wires visible from inside the compartment. Ensure no wires are pinched by shelves or drawers. Reconnect any loose harness connectors inside the appliance.

Sensor Replacement

If visual inspection reveals no obvious issue, sensor replacement is recommended. Our technicians test all accessible sensors with a multimeter and replace any showing abnormal resistance values.

Need Professional Help with Error Code ER OS?

Our highly trained Kenmore technicians can diagnose and fix this error code quickly — using factory-certified parts and a 30-day warranty.

Other Kenmore Refrigerator Error Codes

ER GF Kenmore Refrigerator Er gF Error Code — Ice Maker Fill Error ER DF Kenmore Refrigerator Er dF Error Code — Defrost Sensor Fault ER FS Kenmore Refrigerator Er FS Error Code — Fan Short Circuit ER SS Kenmore Refrigerator Er SS Error Code — Sensor Short ER FZ Kenmore Refrigerator Er FZ Error Code — Freezer Sensor Error ER RF Kenmore Refrigerator Er rF Error Code — Refrigerator Sensor Fault
View All Refrigerator Codes

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