LG Refrigerator iT — What It Means & How to Fix It
iT is LG's icemaker fault: the icemaker isn't producing ice, isn't reporting, or has failed internally — while the rest of the refrigerator can be cooling perfectly.
What this code means
iT tells you LG's icemaker has raised a fault of its own: the ice maker isn't producing ice, isn't communicating with the board, or has failed mechanically. The cheap causes come first — the shut-off arm is off, the icemaker is disabled in settings, or the water line to the door is frozen — and the mechanical ones follow: the icemaker's own motor, heater, or switch failed. It's the one code on this list that can sit alongside a perfectly cold refrigerator.
LG's icemaker error displays as iT on models with a status display; some models signal the same condition with the icemaker light instead of a code. Toggling the icemaker off and on in settings is a legitimate first reset step, after which a technician checks the assembly's signals for a mechanical failure.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Shut-off arm off or icemaker disabled in settings | Very common | Yes — no tools |
| Frozen water line to the icemaker | Common | Yes — thaw the line |
| Icemaker assembly failed (motor, heater or switch) | Common | No — technician job |
| Board or wiring to the icemaker circuit | Less common | No — technician job |
What you can try yourself
- Check the icemaker's shut-off arm: in the up position it stops ice production deliberately. If it's up, that — plus settings — explains no ice.
- Toggle the icemaker off and on again in the refrigerator settings, which performs a control reset of the ice maker.
- Check the water line path at the door hinge for frosage — a frozen supply line starves the icemaker silently; let it thaw, then restart.
- If iT persists with the arm on and the water flowing, the icemaker assembly itself is the suspect — a technician checks its motor, heater and switch signals before replacing it.
When to call a technician
- iT stays after the arm, settings, and water-line checks all pass — the assembly is likely dead.
- Clicking, grinding or a loud hum from the icemaker housing.
- Water gathered under the icemaker or along the door — a line or valve leak.
Typical professional repair cost: Often $0 (a reset or thaw); an icemaker assembly replacement typically runs $150–$350 including labor.
Frequently asked questions
Will iT affect my refrigerator's cooling?
No — the icemaker runs its own module and its fault is independent of the cooling loop. The rest of the unit usually keeps working perfectly, which is why iT so often appears alone.
How long after a reset until I get ice?
Plan on 24 hours: the icemaker has to re-chill its mold, refill, and complete a couple of production cycles before the first fresh batch drops.
Should I replace the icemaker or the whole fridge?
If the refrigerator itself is healthy and just the ice maker failed, the assembly swap is the far cheaper, sensible repair — usually a fraction of what a new unit costs.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related LG codes
- LG Refrigerator Er FF Er FF is LG's freezer evaporator fan fault: the fan that moves cold air through the freezer isn't turning — usually jammed by frost after a defrost, and an unplug-and-thaw reset fixes many cases.
- LG Refrigerator Er rF Er rF is LG's fresh-food evaporator fan fault: the fan serving the refrigerator section isn't turning, so the fridge compartment runs warm even when the freezer stays cold.
- LG Refrigerator dS dS is LG's defrost sensor fault: the sensor on the freezer evaporator reads open or shorted, so the board can't run defrost timing correctly and frost builds over time.
- LG Refrigerator dH dH is LG's defrost-heater timeout: the defrost cycle ran past its limit (about an hour) without the evaporator thawing, so the heater or the sensor reading it is at fault.
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