Step-by-Step DIY Fix Guide
- SAFETY: Unplug the refrigerator before touching the ice maker.
- Check the water supply line at the back of the refrigerator — confirm the shut-off valve is fully open.
- Inspect the ice maker for ice build-up — if the tray or ejector is frozen solid, unplug the refrigerator and leave the freezer door open for 2 hours to thaw.
- After thawing, plug in and press the ice maker's test button (typically a small button on the side of the ice maker) to initiate a manual test cycle.
- If the ice maker completes the test cycle without EIU returning, the issue was ice build-up.
- If EIU returns after thawing and testing, the ice maker assembly requires professional replacement.
If the code comes back
- EIU persists after thawing the ice maker and confirming the water supply is open and flowing
What This Error Means
Error EIU on your LG refrigerator means: The ice maker assembly has reported a general internal fault. The unit is not functioning correctly and ice production has stopped. The refrigerator's self-diagnostic system has detected this condition.
The most frequent cause is ice maker motor or gear mechanism has failed — the bail arm or ejector cannot complete its cycle. Work through the causes and fix steps below in order — many LG refrigerator errors are resolved without a service call.
Many cases of EIU can be resolved by the homeowner. The steps below cover the full DIY checks — if they do not resolve the error, a technician is needed.
Ice maker errors are generally non-urgent — food safety is not at risk. A complete thaw of the ice maker compartment resolves the majority of ice-related faults. If the error returns after thawing, the ice maker assembly needs replacement.
Most Likely Cause by Symptom
The LG refrigerator may stop, pause, or refuse to complete the cycle normally.
Likely cause: Ice maker motor or gear mechanism has failed — the bail arm or ejector cannot complete its cycle
Check first: SAFETY: Unplug the refrigerator before touching the ice maker.
Common Causes
- Ice maker motor or gear mechanism has failed — the bail arm or ejector cannot complete its cycle
- Ice maker control module fault
- Water supply to the ice maker interrupted — frozen water line or closed valve
- Ice maker frozen solid — ice build-up preventing the ejector from moving
What Not to Do
- Do not use a heat gun or hair dryer to thaw a frozen ice maker — uneven heat can warp plastic components
Model and Display Variation Notes
Model-family notes
- LG refrigerator display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Common parts
- Ice maker assembly ($60–$150)
- Water inlet valve (ice maker solenoid) if water supply has failed ($30–$70)
Manual and model check
Check your exact model and manual before ordering any LG refrigerator parts.
Service option
LG service visit if the warning returns after the basic checks are complete.
Suggestions in this section are organized to support the troubleshooting flow first. Any future affiliate relationships should be disclosed clearly.
When Not to Keep Troubleshooting
EIU persists after thawing the ice maker and confirming the water supply is open and flowing
How to Prevent It Recurring
- Replace the refrigerator water filter every 6 months — a clogged filter reduces water flow to the ice maker and can trigger EIU
Related Error Codes
EID
The temperature sensor inside the freezer ice maker has failed or is reading outside the expected range. The refrigerator cannot monitor the ice maker tray temperature and has disabled ice production to prevent a malfunction.
iT
The ice maker has reported a general internal defect. The refrigerator's diagnostics have identified a fault within the ice maker mechanism that is outside the scope of a simple sensor or fan error.
gF
The refrigerator's water flow sensor has detected insufficient water flow to the ice maker and water dispenser. The sensor is not registering adequate pressure or flow rate from the household water supply.
Extra notes
- This page is based on LG support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on LG support material and edited into consumer-safe guidance for the exact code family on this page.
Model coverage note: LG refrigerator code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.