ErrorCodeDoctor
LG · Refrigerator (Top Freezer)
LG Refrigerator (Top Freezer) IS error code
Difficulty: Hard
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Cost: $100–$300
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Duration: Requires professional service
The IS error means your LG refrigerator has detected a problem with either the ice maker fan motor or the ice maker sensor connection. This code may also appear as 1S on some models. The ice maker fan and sensor work together to maintain the correct conditions for ice production — when either fails the ice maker cannot operate safely. There are no user steps to resolve this error and the unit requires a professional repair service.
Common causes
- Ice maker fan motor has malfunctioned or failed
- Ice maker sensor has become disconnected or its wiring is damaged
- Ice maker sensor has failed completely
How to fix it
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1
There are no user-serviceable steps for this error
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2
Unplug the refrigerator and stop using the ice maker
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3
Contact a qualified technician to inspect the ice maker fan motor and sensor