Ice maker sensor fault

Check ice maker water supply — verify valve is open and line is not frozen
Test ice maker thermistor resistance — should vary with temperature (~5K at 32F)
Inspect wiring harness from ice maker to main board
Run ice maker test cycle using the test button on the ice maker module
Pro Diagnostic Tip
On this LG-built 795-series Kenmore the ice maker carries its own test button — hold it about three seconds to force a harvest and watch which step stalls. That single test usually tells you whether the fault is the fill valve, the mold thermistor, or the harvest motor before you swap anything.
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$150–$325
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Refrigerant gauges ($200+), vacuum pump ($250), leak detector ($150), and EPA-certified recovery equipment. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Don't let error code Er IS disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
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Kenmore error code Er IS indicates: Ice maker sensor fault. This is a medium-severity issue affecting your refrigerator.
Check ice maker water supply — verify valve is open and line is not frozen Then, Test ice maker thermistor resistance — should vary with temperature (~5K at 32F) Then, Inspect wiring harness from ice maker to main board There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
Besides the error code on the display, common signs include: No ice dropping into the bin; The ice maker clicking but never harvesting; Hollow or half-formed cubes. If you notice any of these symptoms, check your refrigerator's display panel for error code Er IS.
Repair costs for Kenmore Er IS typically range from $150 to $325 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.