Samsung Refrigerators2018–present

Error Code 24C

Freezer defrosting heater is not working

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 24C

What This Means

Defrosting heater housing separation; Contact error in heater circuit; Heater wire disconnection; Short-circuit in heater; Temperature fuse failure

What actually causes this:

Heater wire disconnected or blown thermal fuse

First Thing to Check

Check if heater has 120V AC power applied

Parts Involved

Freezer Defrosting Heater (121W AC120V)Temperature Fuse (110°C, 250V/10A)

How to Fix

  1. 1

    Separate MAIN PCB CN70 wire from PCB

  2. 2

    Check resistance between CN70 pin #7 and #1

  3. 3

    If 0 Ohm, check for heater short-circuit

  4. 4

    If ∞ Ohm, check for open-circuit or loose connection

This Error Applies To

Samsung RF28K9070A Series Refrigerators (2018) (2018–present)

Service manual exact match: RF28K9070AAService manual exact match: RF22K938AA

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