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Error code reference

LG Refrigerator Error Code 5

Ice maker operation abnormality

LG codesLG refrigerator codes

Ice maker operation abnormality - error displayed when there is bad horizontality or bad ice tray more than twice for each item of the ice maker kit (dispenser models with external attachment type only).

First step from the service manual

Check ice maker horizontality and ice tray condition.

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

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What 5 means on a LG refrigerator

Error code 5 on LG refrigerators with external attachment type ice maker dispensers indicates an ice maker operation abnormality. Specifically, the control system has detected a problem related to either bad horizontality (the ice maker is not level) or a faulty ice tray condition, and this fault condition has occurred more than twice for each affected item within the ice maker kit. This error is exclusive to dispenser models that use an external attachment type ice maker, meaning it will not appear on refrigerators with built-in or internally integrated ice makers.

The ice maker relies on precise leveling to function correctly. When the unit is not horizontal, the ice tray cannot fill evenly with water, which leads to irregular ice formation, incomplete harvesting cycles, or ice that sticks to the tray and fails to eject properly. The control board monitors these cycle completions, and when it detects repeated failures exceeding the two-occurrence threshold per item, it logs and displays error code 5 to alert the technician or user that intervention is needed.

The ice tray itself can also be the source of the problem independent of leveling. A warped, cracked, or damaged tray will cause repeated harvest failures even when the refrigerator is perfectly level. Because the system requires the fault to occur more than twice before triggering the error, intermittent issues will eventually accumulate and trigger the code, making early-stage problems harder to catch before the error appears.

Source: manufacturer service documentation.

Common causes of 5

  1. 01

    Refrigerator not level

    Wiring / connection

    If the refrigerator is tilted front-to-back or side-to-side, the ice tray will not fill or drain evenly, causing repeated cycle failures. Use a level on top of the refrigerator and adjust the leveling legs until the unit is properly horizontal.

  2. 02

    Damaged or warped ice tray

    Part replacement

    A cracked, warped, or deformed ice tray prevents ice from forming or ejecting correctly, triggering repeated harvest errors. Inspect the tray visually and check for any physical deformation or cracking.

  3. 03

    Ice tray not seated correctly

    Wiring / connection

    If the ice tray is improperly installed or has shifted out of its correct position, the ice maker mechanism cannot complete its harvest cycle reliably. Remove and reseat the tray according to the installation alignment for the external attachment ice maker kit.

  4. 04

    Ice maker kit component failure

    Part replacement

    A fault within the external attachment ice maker kit itself, such as a motor or sensor issue, can cause repeated cycle abnormalities even when the tray and leveling appear normal. This would require inspection and likely replacement of the affected kit component.

  5. 05

    Ice buildup interfering with tray movement

    Wiring / connection

    Accumulated ice around the tray or harvest mechanism can physically block the tray from rotating or ejecting ice, causing repeated failure counts. Defrost the ice maker compartment and clear any ice buildup before restarting the unit.

See the test procedure for each cause

Frequently asked questions about 5

What does 5 mean on a LG refrigerator?
Error code 5 on an LG refrigerator indicates an ice maker operation abnormality specific to external attachment type dispenser models. The control system has detected a problem with either the horizontality of the refrigerator or the condition of the ice tray, and this fault has occurred more than twice per item in the ice maker kit. Checking the refrigerator's level and inspecting the ice tray are the recommended first diagnostic steps.
How do I fix error code 5 on my LG refrigerator?
Start by verifying that your refrigerator is sitting level on all four corners using a bubble level, and adjust the leveling legs as needed. Next, inspect the ice tray for any visible damage, warping, or improper seating, and reseat or replace it if necessary. Also check for any ice buildup around the tray or harvest mechanism and clear it out. If the error persists after addressing these items, a component within the ice maker kit itself may need further inspection or replacement.
Is error code 5 on an LG refrigerator a safety concern?
Error code 5 does not indicate a safety hazard to the household. It is specific to the ice maker function and will not affect food preservation in the main refrigerator or freezer compartments. However, leaving the issue unresolved means the ice maker will continue to malfunction and may eventually stop producing ice entirely.
How much does it cost to repair error code 5 on an LG refrigerator?
If the fix is simply releveling the refrigerator or reseating the ice tray, there may be no parts cost at all. If the ice tray itself needs replacement, parts typically range from $20 to $60 depending on the specific model. If a component within the external ice maker kit requires replacement, repair costs including parts and labor can range from $100 to $300 or more.
Will resetting my LG refrigerator clear error code 5?
A reset may temporarily clear the error code from the display, but it will not resolve the underlying cause. Because error code 5 is triggered only after the fault occurs more than twice, the code will return if the horizontality issue or ice tray problem has not been corrected. Always address the root cause before or after resetting to prevent the error from reappearing.

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