Kenmore Refrigerator Error Code Er IS — Ice Maker Sensor Failure
What this means
Error Er IS indicates the ice maker sensor has malfunctioned. This sensor monitors ice maker temperature to determine when to start a harvest cycle. A failed sensor prevents the ice maker from producing ice because it cannot detect when water has frozen.
Alternate codes: Er 1S
Step-by-step fix
4 stepsLocate the sensor
The ice maker sensor is part of or connected to the ice maker assembly in the freezer.
Check wiring
Inspect the wiring harness to the ice maker for loose or damaged connections.
Test the sensor
Disconnect and measure resistance with a multimeter. Compare to service manual specifications.
Replace the sensor or ice maker
If the sensor is integrated into the ice maker, the entire assembly may need replacement.
When to call a professional
If the ice maker assembly needs full replacement.
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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