What Er 1S Means on a Kenmore Ice Maker
The Er 1S error code indicates an ice maker sensor error. The temperature sensor within the ice maker assembly itself is not reading correctly.
Common Causes
- Failed ice maker thermistor
- Ice maker wiring harness damage
What You Can Do
- Try the test cycle: press and hold the ice maker test button for 3 seconds — if it completes, the error may be intermittent.
- Sensor replacement is typically done as part of the ice maker assembly replacement.