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Error code reference

LG Refrigerator Error Code R-15

Ice Maker Function Error

LG codesLG refrigerator codes

Ice Maker Function Error - occurs when there are ice ejection or ice tray parallel position errors over three times. Only applies to models with an Ice Maker.

First step from the service manual

Replace the Ice Maker and check after re-plugging in the unit.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What R-15 means on a LG refrigerator

The R-15 error code on LG refrigerators signals an Ice Maker Function Error. Specifically, the control system has detected either ice ejection failures or ice tray parallel position errors occurring three or more consecutive times. This threshold-based trigger is intentional: a single failed cycle can result from minor issues like a temporary freeze or slight mechanical hesitation, but three repeated failures indicate a persistent mechanical or positional fault within the ice maker assembly itself.

The ice maker unit contains a motor-driven tray that rotates to eject ice, along with position sensors or switches that confirm the tray has returned to its home (parallel) position after each cycle. When the tray fails to eject ice properly, or fails to return to the correct resting position, the control board logs the event. After three such events, R-15 is triggered and displayed. Common contributors include a seized or worn tray motor, a failed or misaligned position sensor, a mechanical obstruction within the ice maker housing, or internal component failure within the ice maker module.

Because the ice maker on LG refrigerators is largely a self-contained assembly, the primary diagnostic and repair path is direct replacement of the ice maker unit. After installing a replacement, the unit should be unplugged and re-plugged to reset the control board and allow the new ice maker to run through an initial cycle. This confirms whether the fault was isolated to the ice maker assembly or if an underlying issue such as a wiring harness fault needs further investigation.

Source: manufacturer service documentation.

Common causes of R-15

  1. 01

    Failed Ice Maker Assembly

    Part replacement

    Internal mechanical failure within the ice maker unit, such as a seized tray motor or broken drive components, is the most common cause of repeated ejection and position errors. Replacing the entire ice maker assembly is the recommended first step.

  2. 02

    Ice Tray Position Sensor or Switch Fault

    Part replacement

    The position sensor or switch that confirms the ice tray has returned to its parallel home position can fail or become misaligned, causing the control board to log repeated position errors even if the tray motor is functional.

  3. 03

    Ice Jam or Obstruction in the Tray

    Wiring / connection

    A buildup of ice or a foreign object lodged in the ice maker tray or ejection path can physically block the tray from completing its rotation cycle. Inspect the ice maker compartment for visible blockages or fused ice before replacing parts.

  4. 04

    Wiring Harness or Connector Issue

    Wiring / connection

    A loose, corroded, or damaged connector between the ice maker assembly and the main control board can interrupt communication and cause false or persistent error logging. Inspect the harness connections at the ice maker plug-in point.

  5. 05

    Control Board Misread After Ice Maker Replacement

    Wiring / connection

    If an ice maker was recently replaced but the unit was not power cycled afterward, the control board may continue to display the stored error. Unplugging the refrigerator and re-plugging it is required to clear the fault after any ice maker service.

See the test procedure for each cause

Frequently asked questions about R-15

What does R-15 mean on a LG refrigerator?
R-15 on an LG refrigerator indicates an Ice Maker Function Error. The control board has detected either ice ejection failures or ice tray parallel position errors happening three or more times in a row. This code only appears on LG models equipped with a built-in ice maker. The refrigerator's cooling functions typically continue to operate normally while this error is active.
Can I fix the R-15 error myself, or do I need a technician?
Some homeowners with appliance repair experience can replace an LG ice maker assembly themselves, as it is generally a plug-in modular component. Before replacing any parts, check for ice jams or obstructions in the ice maker tray and inspect the wiring harness connections. If those checks come back clean, the ice maker assembly will likely need to be replaced, which a confident DIYer can often handle. If you are unsure about working with electrical components, a qualified technician is recommended.
Is it safe to keep using my refrigerator while it shows error R-15?
Yes, it is generally safe to continue using the refrigerator while R-15 is displayed. The error is specific to the ice maker function and does not indicate a problem with the compressor, cooling system, or food safety. Your refrigerator should continue to cool normally. However, the ice maker will not produce ice until the fault is resolved.
Will resetting my LG refrigerator clear the R-15 error code?
A power cycle by unplugging the unit and re-plugging it may temporarily clear the displayed error, but if the underlying ice maker fault has not been corrected, the code will return after the ice maker attempts another cycle and fails again. A lasting fix requires addressing the root cause, whether that is removing an obstruction or replacing the ice maker assembly. After any repair, a power cycle is required to reset the control board.
How much does it cost to fix an R-15 error on an LG refrigerator?
If the repair only requires clearing an ice jam, there is no parts cost involved. If the ice maker assembly needs to be replaced, parts alone typically range from around $80 to $200 depending on the specific LG model. Adding professional labor, the total repair cost generally falls in the range of $150 to $350. Prices can vary based on your location, the technician's rates, and part availability.

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