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LG Refrigerator Er IS Error Code

Ice maker sensor fault. What it means, which models show it, and how to clear it, easiest fix first.

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Er IS
May need a pro

LG links this code to the ice maker's temperature sensor being faulty or disconnected, and in its error list also to a problem with the ice maker fan motor. The ice maker may stop making or dropping ice.

Compatible models

LG doesn't publish a model list for this code; it appears on LG refrigerators with a digital display. Check your owner's manual.

Also shown as

Also shown as 1S on some displays.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Safety first: unplug the refrigerator (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix LG Er IS

  1. Reset the power

    Unplug the refrigerator for about 5 minutes, then plug it back in and check whether the code has cleared.

  2. Record the code

    If the code returns, note it along with your model and serial number, which are on the label inside the fresh food section.

When to call a technician

LG lists this as a repair code. Do not open the ice maker; request service if the code returns after a reset.

Parts linked to Er IS

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does Er IS mean on a LG refrigerator?

LG links this code to the ice maker's temperature sensor being faulty or disconnected, and in its error list also to a problem with the ice maker fan motor. The ice maker may stop making or dropping ice.

Which LG models show the Er IS code?

LG doesn't publish a model list for this code; it appears on LG refrigerators with a digital display. Check your owner's manual.

Can I fix LG Er IS myself?

Only the basic checks. You can safely try the steps above, but Er IS usually points to a part or fault that needs a technician.

What if Er IS keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when Er IS appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Other LG refrigerator codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked