Samsung Refrigerators

Error Code 4

Freezer defrost sensor is broken or not connected properly.

Moderate

Address soon - your appliance may not work properly

Also displayed as: 4 (Freezer), c (Fridge)

What This Means

Sensor housing slipped out; Wire cut or damaged; Wire short circuit; Sensor reading above 50°C or below -50°C

What actually causes this:

Defrost sensor wire came loose or sensor failed.

First Thing to Check

Look for loose or damaged wires near the freezer evaporator.

Parts Involved

F-Def Sensor (Freezer Defrost Sensor)DC BLU1 Connector

How to Fix

  1. 1

    Check voltage between Case Connector DC BLU1 #14 and #15

  2. 2

    Expected voltage: 4.5V to 1.0V

  3. 3

    If outside range, sensor is faulty

This Error Applies To

Samsung BRF365200A Series Refrigerators

Service manual exact match: DRF365300AP/DAService manual exact match: BRF365200AP/AA

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