Error Code 5
Fridge defrost sensor has failed or lost connection
Moderate
Address soon - your appliance may not work properly
Also displayed as: LED 5 blink
What This Means
Sensor housing slipped out of connector; Open or shorted wire; Sensor reads temperature out of valid range
What actually causes this:
The sensor mounted on the fridge evaporator coil is disconnected or broken, so the board cannot end the defrost cycle on time.
First Thing to Check
Check the sensor connector at CN3 pins 2 and 3 and verify the sensor is properly clipped to the fridge evaporator.
Parts Involved
How to Fix
- 1
Access self-diagnostic mode
- 2
Measure voltage at Case Connector CN3 pin #2 to pin #3 — should be between 1.0V and 4.5V
- 3
Inspect sensor mounting on fridge evaporator
- 4
Verify wiring from sensor to CN3
This Error Applies To
Samsung RS27FDBTNS Series Refrigerators (2016) (2016–present)
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