Er IT Moderate Moderate DIY

LG Refrigerator Er IT — Ice maker assembly internal fault

LG Refrigerator · Error code Er IT

What Er IT Means

The ice maker assembly reported an internal system error during a self-test — typically a stuck motor, sensor, or harvest mechanism inside the ice maker module.

Symptoms

  • Er IT on display
  • Ice maker not cycling
  • Cubes partially formed and stuck
  • Self-test fails on the ice maker

Common Causes

1
Jammed ice harvest mechanism

Frozen-together cubes block the auger or tray flip.

2
Failed ice maker module

Internal motor or controller in the icemaker module.

3
Failed fill tube or chute icing

Slush refreeze blocks the fill cup.

4
Ice maker harness disconnected

Connector at the ice maker plug unseated.

How to Fix It

  1. Unplug the unit and remove the ice bin/assembly.
  2. Thaw any ice blockage in the chute or fill cup with warm water.
  3. Inspect the ice maker harness/plug; reseat firmly.
  4. Reinstall and run the ice maker self-test (per owner's manual).
  5. If Er IT returns, replace the ice maker assembly as a unit.
  6. Verify fill volume is correct — overfilling causes refreeze.

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 LG 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.