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Error code reference

LG Refrigerator Error Code SS E

Sub error (displayed by pressing Ice Plus + Freezer buttons simultaneously).

LG codesLG refrigerator codes

Sub error (displayed by pressing Ice Plus + Freezer buttons simultaneously).

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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What SS E means on a LG refrigerator

The SS E code on an LG refrigerator is a sub-error display, meaning it is not a standalone primary fault code but rather a supplementary diagnostic code that reveals additional system-level information. It is accessed by pressing the Ice Plus and Freezer buttons simultaneously, which activates a hidden diagnostic mode built into the refrigerator's control system. This access method indicates that SS E is intended for service technician use rather than being a consumer-facing alert, and it surfaces underlying fault data that the main display would not ordinarily show during normal operation.

Because SS E functions as a sub-error indicator, its meaning is context-dependent. The code points to a secondary fault condition that exists alongside or beneath another primary error. LG refrigerators use layered diagnostic structures where certain faults are nested within broader system categories, and the sub-error mode allows technicians to drill down into the specific origin of a problem. The particular component or system involved depends on what primary error is present at the same time, making it essential to record all codes displayed when entering the diagnostic menu.

Diagnosing SS E correctly requires reading the full diagnostic output rather than treating SS E in isolation. Technicians should note every code visible in the sub-error menu, as these codes in combination identify the affected circuit, sensor, or control board function. Common areas flagged through sub-error menus in LG refrigerators include sensor circuits, defrost system components, fan motor feedback, and communication lines between the main control board and sub-boards.

Source: manufacturer service documentation.

Common causes of SS E

  1. 01

    Sensor circuit fault

    Part replacement

    Temperature or humidity sensors in LG refrigerators can develop open or shorted circuits that register as sub-errors in the diagnostic menu. Checking sensor resistance values against specifications helps confirm whether the sensor has failed.

  2. 02

    Defrost system malfunction

    Part replacement

    A failed defrost heater, defrost thermostat, or defrost sensor can trigger sub-error codes visible in the LG diagnostic mode. Ice buildup on the evaporator coil is a common physical sign of a defrost system problem.

  3. 03

    Control board communication error

    Wiring / connection

    LG refrigerators use main and sub control boards that communicate continuously, and a break in that communication can surface as a sub-error code. Inspecting wiring harness connections between the boards is the first step in identifying this cause.

  4. 04

    Fan motor feedback failure

    Part replacement

    Evaporator or condenser fan motors with failing feedback signals can register sub-errors in the diagnostic system. Unusual noise or intermittent cooling performance often accompanies this type of fault.

  5. 05

    Loose or damaged wiring connection

    Wiring / connection

    Corroded, loose, or damaged connectors anywhere in the refrigerator's wiring harness can cause erratic signals that the control system logs as sub-errors. A thorough visual inspection of all connectors and wire routing is recommended before replacing components.

See the test procedure for each cause

Frequently asked questions about SS E

What does SS E mean on a LG refrigerator?
SS E is a sub-error code on LG refrigerators that appears when you press the Ice Plus and Freezer buttons simultaneously to enter a hidden diagnostic mode. It indicates a secondary or underlying fault condition in the refrigerator's systems. This code is designed for technician use and must be interpreted alongside any other codes shown in the diagnostic menu to identify the specific problem.
Can I fix the SS E code on my LG refrigerator myself?
Because SS E is a sub-error code that requires accessing a hidden diagnostic menu, pinpointing the exact cause without technical knowledge can be difficult. If you are comfortable checking wiring connections and looking for obvious physical issues like ice buildup or disconnected harnesses, those are reasonable starting points. For sensor replacements, control board issues, or defrost system repairs, a qualified appliance technician is recommended.
Is it safe to keep using my LG refrigerator when SS E is displayed?
Whether it is safe to continue using the refrigerator depends on what underlying fault the SS E code is associated with. If the refrigerator is maintaining proper temperatures and no food spoilage is occurring, short-term use may be acceptable while you arrange for service. However, if cooling performance is compromised, the refrigerator should not be relied on to safely store perishables until the fault is diagnosed and repaired.
Will resetting my LG refrigerator clear the SS E code?
A power reset may temporarily clear the code from the display, but if the underlying fault condition still exists, the sub-error will return when the diagnostic menu is accessed again. Resetting is useful to check whether a code was caused by a transient glitch, but it does not repair the root cause. Persistent return of the code after a reset confirms that a real fault requires diagnosis.
How much does it cost to repair an LG refrigerator showing the SS E code?
Repair costs vary widely depending on which component the sub-error is ultimately traced to. A simple wiring connector fix may cost very little, while sensor replacements typically range from around $50 to $150 in parts. Control board replacements can range from $150 to $400 or more depending on the specific board involved. Adding a technician service call and labor will increase the total, typically by $75 to $200 depending on your location.

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