Error Code 5
Refrigerator defrost sensor is broken or not communicating
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: R-Def Sensor Error
What This Means
Defrost sensor disconnected or damaged; Wire cut or short circuit; Sensor mounted incorrectly; Temperature reading anomaly
What actually causes this:
Defrost sensor malfunction or wiring disconnection
First Thing to Check
Verify connector is fully seated at DC YEL2
Parts Involved
How to Fix
- 1
Check voltage between Case Connector DC YEL2 #14 and #15
- 2
Expected voltage should be within 4.5V to 1.0V
- 3
Verify sensor is properly mounted on fridge evaporator
- 4
Test sensor response during defrost
This Error Applies To
Samsung BRF425200A Series Refrigerators (2017) (2017–present)
Related Error Codes
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Cocktail ice maker is not producing ice
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FlexZone compartment temperature sensor is broken or disconnected
Rear cabinet heater element is broken or disconnected
Ice maker water line heater is broken or disconnected
FlexZone compartment is not maintaining proper temperature