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Error code reference

LG Refrigerator Error Code It

Abnormal Ice Maker Unit

LG codesLG refrigerator codes

Abnormal Ice Maker Unit – wire open, short circuit, loose connection, defective Hall IC, or defective ice maker motor (secondary error).

First step from the service manual

Check for motor stuck, twisted tray ice, loose connections on Main PCB or freezer compartment.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What It means on a LG refrigerator

The It error code on an LG refrigerator indicates an abnormal condition in the ice maker unit. This is classified as a secondary error, meaning it typically appears in conjunction with or following another fault condition in the system. The error is triggered when the main PCB detects a problem in the ice maker circuit, which can include a wire open condition, a short circuit, a loose harness connection, a defective Hall IC sensor, or a failed ice maker motor. The Hall IC is a magnetic sensor that monitors the rotation of the ice maker's twist tray motor, so any failure in that sensing circuit will register as an It fault.

The ice maker system in LG refrigerators relies on precise motor movement to rotate and flex the ice tray during the harvest cycle. If the motor becomes mechanically stuck due to ice buildup or a jam, or if the wiring between the freezer compartment and the main PCB is damaged or disconnected, the control board cannot confirm proper motor operation and will flag the It error. Loose connections at the main PCB harness connector or at the ice maker assembly itself are a frequent root cause and should be inspected before replacing any components.

Diagnosis should begin with a physical inspection of the ice maker for a stuck motor or twisted tray ice blockage. Next, inspect all wiring harnesses connecting the ice maker to the main PCB, checking for corrosion, pinched wires, or unseated connectors. If wiring and connections are intact, the Hall IC and the ice maker motor itself should be tested for proper function, as either component can fail independently and produce this fault code.

Source: manufacturer service documentation.

Common causes of It

  1. 01

    Stuck Ice Maker Motor or Ice Jam

    Wiring / connection

    Ice can build up around the twist tray mechanism, physically preventing the motor from rotating during the harvest cycle. Inspect the ice maker tray and surrounding area for ice blockages or a visibly seized motor.

  2. 02

    Loose or Disconnected Wiring Harness

    Wiring / connection

    The connectors linking the ice maker assembly to the main PCB can work loose over time due to vibration or thermal cycling. Check all harness connections at both the main PCB and the freezer compartment ice maker unit for secure seating.

  3. 03

    Open or Shorted Wire in Ice Maker Circuit

    Part replacement

    A break or short circuit in the wiring between the ice maker and the main PCB will prevent proper signal transmission and trigger the It code. Inspect the full wire run for pinched, frayed, or corroded sections.

  4. 04

    Defective Hall IC Sensor

    Part replacement

    The Hall IC is a magnetic sensor that monitors motor shaft rotation in the ice maker. If the sensor fails, the control board receives no feedback on motor movement and registers an abnormal condition even if the motor itself is functional.

  5. 05

    Defective Ice Maker Motor

    Part replacement

    The ice maker motor drives the twist tray through its harvest cycle. A failed motor will prevent the tray from rotating, causing the Hall IC to report no movement and triggering the It fault code.

See the test procedure for each cause

Frequently asked questions about It

What does It mean on a LG refrigerator?
The It error code on an LG refrigerator indicates an abnormal condition in the ice maker unit. It can be caused by a stuck motor, an ice jam in the tray, a loose or open wire, a short circuit, a defective Hall IC sensor, or a failed ice maker motor. It is considered a secondary error code, meaning it often appears alongside another fault in the system. The ice maker will typically stop producing ice when this code is active.
Can I fix the It error on my LG refrigerator myself?
Some causes of the It error are DIY-friendly. Clearing an ice jam from the tray mechanism and checking that all wire harness connections are firmly seated at the main PCB and ice maker assembly can often be done without special tools. However, diagnosing and replacing a defective Hall IC or ice maker motor requires component-level testing and is better handled by a qualified technician if you are not comfortable with appliance repair.
Will resetting my LG refrigerator clear the It error code?
A reset may temporarily clear the It code, but if the underlying problem has not been resolved, the error will return once the ice maker attempts its next cycle. To clear the code permanently, the root cause such as an ice jam, loose connection, or failed component must be identified and corrected. Resetting without diagnosis is not a reliable fix.
Is the It error on my LG refrigerator a safety concern?
The It error is specific to the ice maker unit and does not indicate a refrigerant leak, electrical hazard, or food safety risk in most cases. Your refrigerator should continue cooling normally while this error is active, though the ice maker will not function properly. It is still advisable to address the fault promptly to prevent any secondary damage to related components.
How much does it cost to repair an LG refrigerator showing the It error code?
Repair costs vary depending on the root cause. If the issue is a loose connection or an ice jam, the repair may cost little to nothing beyond a service call fee, which typically ranges from $75 to $150. Replacing a defective Hall IC or ice maker motor, including parts and labor, generally falls in the range of $150 to $400 depending on your location and the specific parts required.

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