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Error code reference

LG Refrigerator Error Code Er lt

Ice maker equipment defect

LG codesLG refrigerator codes

Ice maker equipment defect - electrical system error such as motor, IC hall sensor, or I/M kit circuit malfunction.

First step from the service manual

Check if ice does not drop even when S/W test I/M is in process.

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
  • Verified part numbers when replacement is required
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What Er lt means on a LG refrigerator

The Er lt error code on an LG refrigerator indicates a defect within the ice maker's electrical system. Specifically, this code points to a malfunction in one or more of the following components: the ice maker motor, the IC hall sensor, or the ice maker kit circuit itself. The hall sensor is responsible for detecting the position and rotation of the ice maker's ejector arm motor, sending feedback signals to the control board to confirm that the ice-making cycle is progressing correctly. When this signal is absent, erratic, or out of expected range, the control board logs Er lt and may suspend ice maker operation.

The most reliable first diagnostic step is to run a software-initiated ice maker test (S/W test I/M) and observe whether ice drops during the cycle. If the ejector arm fails to rotate and ice does not drop, this confirms the motor or hall sensor is not functioning correctly rather than a simple software glitch. The hall sensor typically works by detecting magnetic pulses as the motor rotates, so a failed sensor or a broken magnet on the motor assembly will prevent the control board from receiving confirmation of movement.

Common root causes include a seized or burned-out ice maker motor, a faulty hall sensor that no longer responds to magnetic fields, wiring harness damage between the ice maker assembly and the main control board, or a defective ice maker kit circuit board. Because these components are closely integrated within the ice maker assembly, repair often involves replacing the full ice maker kit rather than individual sub-components.

Source: manufacturer service documentation.

Common causes of Er lt

  1. 01

    Faulty IC Hall Sensor

    Part replacement

    The hall sensor monitors motor rotation inside the ice maker. If it fails or loses contact with the motor's magnet, the control board receives no feedback and triggers Er lt.

  2. 02

    Ice Maker Motor Failure

    Part replacement

    A seized, burned-out, or mechanically stuck ejector motor will prevent the ice dropping cycle from completing. Running the S/W test I/M and observing no arm movement confirms this cause.

  3. 03

    Defective Ice Maker Kit Circuit Board

    Part replacement

    The internal circuit board within the ice maker assembly can develop open circuits or component failures, causing the entire unit to stop communicating correctly with the main control board.

  4. 04

    Wiring Harness Damage or Loose Connection

    Wiring / connection

    Damaged, pinched, or disconnected wiring between the ice maker assembly and the main control board can interrupt signal transmission and produce this error. Inspect connectors for corrosion, bent pins, or loose plugs.

  5. 05

    Ice Jam Causing Motor Overload

    Wiring / connection

    A physical ice blockage around the ejector arm can place excessive load on the motor, causing it to stall and triggering the hall sensor fault. Clear any ice buildup and retest before replacing components.

See the test procedure for each cause

Frequently asked questions about Er lt

What does Er lt mean on a LG refrigerator?
Er lt on an LG refrigerator indicates an ice maker electrical system defect. The code is triggered when the control board detects a malfunction in the ice maker motor, the IC hall sensor, or the ice maker kit circuit. This typically results in the ice maker stopping its cycle and failing to produce or eject ice.
Can I fix the Er lt error myself, or do I need a technician?
Some causes, such as a loose wiring connection or an ice jam around the ejector arm, can be addressed without professional help. However, replacing the hall sensor, motor, or ice maker kit circuit board requires comfort with appliance disassembly and electrical components. If you are not experienced with appliance repair, a licensed technician is recommended to avoid further damage.
Is it safe to keep using my refrigerator while the Er lt code is active?
The Er lt error affects only the ice maker system and does not indicate a hazard to the refrigerator's cooling or food preservation functions. Your refrigerator should continue to cool normally. However, the ice maker should be considered non-functional until the fault is diagnosed and repaired.
Will resetting my LG refrigerator clear the Er lt error code?
A power reset may temporarily clear the code, but if the underlying component failure persists, the error will return once the ice maker attempts another cycle. A reset is useful for ruling out a temporary software glitch, but it is not a permanent fix for a failed motor, hall sensor, or circuit board.
How much does it cost to repair the Er lt error on an LG refrigerator?
Repair costs vary depending on which component has failed. Replacing a wiring harness or clearing an ice jam is generally low cost. A full ice maker kit replacement, including parts and labor, typically ranges from $150 to $400 depending on the specific model and service rates in your area. Diagnosing the exact failed component before ordering parts can help avoid unnecessary expense.

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