Samsung Refrigerators

Error Code -23°C LED LAMP

Refrigerator freezer not defrosting properly

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: -23°C indicator LED lamp

What This Means

Defrost heater contact lost; Poor contact in heater circuit; Heater wire short circuit; Heater wire broken circuit; Temperature fuse faulty

What actually causes this:

Broken connection or failed heating element prevents automatic defrost cycle

First Thing to Check

Listen and feel for warmth during defrost cycle to confirm heater activation

Parts Involved

Defrosting heaterThermal fuseCN70 connectorCN77 connector

How to Fix

  1. 1

    1. Remove MAIN PCB CN70 and CN77 connectors

  2. 2

    2. Read continuity between BROWN and ORANGE wires

  3. 3

    3. If 0 Ohm, check heater short circuit

  4. 4

    4. If infinite Ohm, check wire/thermal fuse/bimetal for open circuit

  5. 5

    5. If defrosting time over 120 minutes without operation, indicates poor condition

This Error Applies To

Samsung RB12A3006 Series Refrigerators

Service manual exact match: RB12A300631/AAService manual exact match: RB12A300635/AAService manual exact match: RB12A300641/AA

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