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Error code reference

LG Refrigerator Error Code Miracle Zone sensor error

Failure of Miracle Zone sensor due to cut or short circuit wire (BEST model only).

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Failure of Miracle Zone sensor due to cut or short circuit wire (BEST model only).

First step from the service manual

Press and hold SUPER FRZ button and FRZ Temp button for 1 second or longer; if abnormal, the graphics of temp and text of miracle zone on LCD are off. Inspect connecting wires on the sensor.

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

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What Miracle Zone sensor error means on a LG refrigerator

The Miracle Zone sensor error on LG BEST model refrigerators indicates a failure in the temperature sensing circuit for the Miracle Zone compartment. This specialized zone is designed to maintain a precise temperature range separate from the main refrigerator and freezer sections. When the refrigerator's control board loses a valid signal from the Miracle Zone sensor, it triggers this error because it can no longer regulate temperature in that compartment accurately. The root cause is typically either an open circuit (cut wire) or a short circuit within the sensor's wiring harness.

To confirm the error is active, press and hold the SUPER FRZ button and the FRZ Temp button simultaneously for at least one second. In a fault condition, the LCD display will turn off both the temperature graphics and the Miracle Zone text, indicating the control board has detected an abnormal signal from the sensor circuit. This display behavior distinguishes an actual sensor fault from a temporary communication glitch.

The primary inspection point is the wiring connecting the Miracle Zone sensor to the control board. A cut, pinched, or chafed wire will create an open circuit, while a wire contacting a grounded metal surface or another conductor will produce a short. Both conditions result in the same error code. The sensor itself can also fail internally, but wiring issues are the first item to inspect and rule out before replacing the sensor component.

Source: manufacturer service documentation.

Common causes of Miracle Zone sensor error

  1. 01

    Cut or damaged sensor wire

    Wiring / connection

    A wire in the Miracle Zone sensor harness may have been cut, nicked, or broken, creating an open circuit. Visually inspect the full length of the wiring from the sensor to its connector for any visible damage.

  2. 02

    Pinched or shorted wire

    Wiring / connection

    A wire pinched between panels or contacting a metal surface can create a short circuit, which the control board reads as a sensor fault. Check along the wire routing path for any points where insulation may be compromised.

  3. 03

    Loose or corroded connector

    Wiring / connection

    The connector joining the sensor wiring to the main harness may have worked loose or developed corrosion, interrupting the signal. Disconnect and firmly reseat the connector, inspecting the terminals for oxidation or bent pins.

  4. 04

    Failed Miracle Zone temperature sensor

    Part replacement

    If the wiring and connectors check out as intact, the sensor itself may have failed internally due to an open or short within the sensor body. A failed sensor will need to be replaced to resolve the error.

  5. 05

    Control board fault

    Part replacement

    In rare cases, the main control board may incorrectly read the sensor circuit as faulted even when the sensor and wiring are intact. This is typically only considered after all wiring and the sensor itself have been ruled out.

See the test procedure for each cause

Frequently asked questions about Miracle Zone sensor error

What does Miracle Zone sensor error mean on a LG refrigerator?
This error indicates the refrigerator's control board has detected a failure in the temperature sensor circuit for the Miracle Zone compartment, specific to LG BEST models. The failure is caused by either a cut wire creating an open circuit or a shorted wire in the sensor's wiring harness. When this error is active, the Miracle Zone temperature graphics and text on the LCD display will turn off, signaling the compartment's temperature can no longer be monitored or controlled.
How do I fix the Miracle Zone sensor error on my LG refrigerator?
Start by pressing and holding the SUPER FRZ and FRZ Temp buttons together for at least one second to confirm the error is present. Then inspect the wiring connected to the Miracle Zone sensor for any cuts, pinches, shorts, or loose connectors, as damaged wiring is the most common cause. If the wiring appears intact and properly connected, the sensor itself may need to be replaced.
Is the Miracle Zone sensor error a safety concern?
This error does not represent a safety hazard such as a fire or shock risk, but it does mean the Miracle Zone compartment is no longer being regulated to its intended temperature. Food stored in that compartment may not be kept at a safe or consistent temperature until the fault is resolved. Avoid storing perishable items in the Miracle Zone until the sensor issue is corrected.
Will resetting my LG refrigerator clear the Miracle Zone sensor error?
A power reset will not permanently clear this error if the underlying wiring fault or sensor failure is still present. The control board will detect the abnormal sensor signal again after power is restored and re-display the fault. The error will only clear once the cut or shorted wire is repaired or the faulty sensor is replaced.
How much does it cost to repair a Miracle Zone sensor error on an LG refrigerator?
If the issue is a simple wiring repair or connector reseat, the cost may be minimal, primarily covering a service call in the range of $75 to $150. If the Miracle Zone sensor itself needs to be replaced, parts and labor combined typically range from $100 to $250 depending on parts availability and local labor rates. Control board replacement, if needed, is a more expensive repair that can range from $200 to $400 or more.

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