Samsung Refrigerators2010–present

Error Code

The refrigerator ice duct heater isn't warming up

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: LED blinks in self-diagnostic checklist position 34

What This Means

Ice duct heater shorted (0Ω reading); Ice duct heater wire open circuit (∞Ω reading); Bimetal protector defective; Harness damaged

What actually causes this:

The heater element failed or its wire came loose

First Thing to Check

Check if ice clogs the refrigerator ice dispenser or if ice flow is reduced

Parts Involved

Refrigerator Ice Duct HeaterBimetal ProtectorWire Harness CN20

How to Fix

  1. 1

    1. Unplug refrigerator and wait 5 minutes

  2. 2

    2. Disconnect MAIN PCB CN20 wire from PCB

  3. 3

    3. Measure resistance between CN20 pins 21 and 23 (power OFF)

  4. 4

    4. Should read 63Ω ± 7% (115V) or 230Ω ± 7% (230V)

  5. 5

    5. If abnormal, replace ice duct heater

This Error Applies To

Samsung RF23R6 Series Refrigerators (2010) (2010–present)

Service manual exact match: RF23R6201AAService manual exact match: RF23R6201EDService manual exact match: RF23R6201AZService manual exact match: RF23R6301AAService manual exact match: RF23R6201BZ

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