Er EIU Moderate Hard — consider a tech

LG Refrigerator Er EIU — In-door ice maker assembly failure

LG Refrigerator · Error code Er EIU

What Er EIU Means

The in-door ice maker module reported an internal failure (motor, controller, or harvest mechanism). Typically requires replacing the icemaker assembly.

Symptoms

  • Er EIU on display
  • Ice maker non-functional
  • Harvest motor stalled
  • Self-test fails

Common Causes

1
Failed icemaker module

Internal motor or controller dead.

2
Jammed harvest mechanism

Ice clump locks the assembly.

3
Damaged harness

Door-hinge wiring broken.

How to Fix It

  1. Unplug and remove the ice bin/assembly.
  2. Thaw any visible ice block with warm water and dry thoroughly.
  3. Reseat the assembly harness.
  4. Run the self-test per owner manual.
  5. If Er EIU returns, replace the in-door ice maker assembly.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement In-door ice maker assembly View on Amazon→

More LG Refrigerator Codes

22 22 — Compressor relay / inverter control fault 33 33 — Compressor / defrost test fault 67 67 — Door open / not fully closed 88 88 — Power-on display test (not a fault) Er CF Er CF — Condenser Fan Fault Er CO Er CO — Compressor / Communication Fault

All LG codes → All refrigerator codes →

Verified against manufacturer documentation: lg.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.