Kenmore Refrigerator Error Code Er dS — Freezer Defrost Sensor Short
What this means
Error Er dS indicates the freezer defrost temperature sensor has a short circuit. This sensor monitors the evaporator temperature during defrost cycles to determine when defrost is complete. A shorted sensor can cause the defrost heater to run too long or not at all, leading to ice buildup.
Alternate codes: Er DS
Step-by-step fix
4 stepsAccess the defrost sensor
The sensor is located on or near the evaporator coils in the freezer compartment. You may need to remove the freezer back panel.
Defrost any ice buildup first to access the sensor.
Test the sensor
Disconnect the sensor and test resistance with a multimeter. Compare to the specs for your model.
A near-zero reading confirms a short circuit.
Check wiring
Inspect the wiring from the sensor to the control board for pinched or stripped wires.
Replace the sensor
If the sensor is shorted, replace it along with the defrost thermostat if applicable.
When to call a professional
If the evaporator area is heavily iced over or the sensor is difficult to access.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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