Er 1C
LG Ice Maker Sensor or Communication Error

Error code “1C” or “IC” and ice production stops; sometimes accompanied by water in ice room.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Faulty ice maker sensor, Loose ice maker harness connector, Ice maker module failure, Main PCB communication fault

How to Fix / Troubleshooting

Safety: Unplug the refrigerator before removing the ice maker.

  • Reset ice maker: On many LG models, press and hold the ice maker test/reset button for 3 seconds. If the error returns, continue.
  • Inspect harness: Remove the ice maker assembly and check the wiring harness and connector for damage or corrosion.
  • Replace ice maker: If the sensor or module is faulty, replace the entire ice maker assembly with an LG-compatible unit.
  • PCB check: If a new ice maker does not resolve the error, the main PCB may be at fault and should be evaluated by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Ice Maker Assembly
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