LG Refrigerator IT Error: Ice maker assembly malfunction
LG refrigerator error — here’s what you need to know. The iT error code on your LG refrigerator indicates ice maker defect — a malfunction has been detected in the ice maker assembly. This is a Medium severity issue. What Does iT Mean on an LG Refrigerator? iT (Ice maker Temperature or Ice maker fault, […]
~60%
DIY Fixable
From $60 (ice maker reset) — $400 (assembly replacement)
Typical Repair Cost
1–4 hours
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Yes. The refrigerator and freezer cooling functions are not affected by an iT ice maker fault. Food storage is safe. Only the ice maker feature is disabled while the fault is active.
Can I reset the code?
Yes. Turning the ice maker off and back on, or unplugging the refrigerator for 60 seconds, clears the iT code. If the underlying cause (frozen tray, failed motor or thermistor) is not corrected, iT will return within one ice-making cycle.
When to stop immediately?
Stop if you notice: Stop the ice maker and call a technician if iT returns within 24 hours of a successful manual defrost and reset — the ice maker assembly is failing., Stop if water is leaking from the ice maker onto freezer shelves or pooling under the refrigerator — the water fill valve or ice tray seals may be compromised..
Symptoms You May Notice
Ice maker stops producing ice
The ice maker ceases its production cycle entirely — no new ice cubes are dropped into the bin even though the freezer maintains correct temperature and the water supply is connected.
iT code on the refrigerator display
The iT fault code appears on the door display panel or inside digital readout, indicating the ice maker control circuit has logged a fault.
Ice maker tray is frozen solid and not rotating
Inspection of the ice maker reveals the tray is locked in one position — packed with ice — and the harvest motor cannot move it to release the cubes.
Ice maker runs through a cycle but produces no ice or malformed cubes
The ice maker motor may audibly attempt a harvest cycle but produces undersized, misshapen, or hollow ice cubes that do not dispense correctly, indicating a water fill or temperature issue alongside the fault.
Possible Causes
Frozen or jammed ice maker tray
Freezer temperature set too low, or frost accumulation in the ice maker compartment, freezes the ice tray solid so the harvest motor cannot rotate it, triggering a harvest-motor fault that the board reads as iT.
DIY PossibleFailed ice maker thermistor
The thermistor inside the ice maker assembly that measures tray temperature for harvest timing has failed electrically, sending an invalid signal to the main control board.
Requires ProfessionalFaulty ice maker assembly (motor, sensor, or logic board)
The ice maker harvest motor, position sensor, or the small onboard logic module within the assembly has failed, preventing normal ice-making cycles from completing.
Requires ProfessionalSafe Checks You Can Do
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1
Turn off the ice maker and perform a manual defrost
Switch the ice maker off using its power switch or the control panel. Remove the ice bin. Use a hair dryer on low heat or allow the freezer to warm passively (with doors open and food removed or placed in a cooler) until all visible frost and ice in the ice maker compartment melts. Dry thoroughly, replace the ice bin, and restart the ice maker.
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2
Check and adjust freezer temperature
Verify the freezer is set to 0°F (–18°C). A setting colder than –5°F can over-freeze the ice tray and prevent harvest. Adjust if necessary and allow 24 hours for temperature to stabilise before re-evaluating ice production.
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3
Reset the ice maker
After the defrost, unplug the refrigerator for 60 seconds to reset the control board, then restore power. With the ice maker switched on, press and hold the Test/Fill button on the ice maker (location varies by model — consult your manual) for 3 seconds to initiate a test cycle. Listen for the harvest motor to turn and water to fill.
When to Call a Professional
Contact a qualified technician if:
- iT returns within one ice cycle after manual defrost and reset — thermistor or harvest motor assembly requires testing and likely replacement.
- Ice maker harvest motor is audible but does not complete a full rotation — motor or position sensor failure within the assembly.
- iT persists even with the ice maker disconnected and replaced with a new assembly — control board ice maker input circuit may have failed.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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