Error Code 21
Freezer fan is not spinning or its sensor is not working.
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 21 (Freezer), c (Fridge)
What This Means
Feedback signal wire is defective; Fan motor wire slipped out or disconnected; Fan motor is defective; Relay malfunction
What actually causes this:
Fan motor wire came loose, ice blocked the fan, or motor burned out.
First Thing to Check
Look for ice blocking the fan blades or a loose wire connection.
Parts Involved
How to Fix
- 1
Check voltage between Case Connector DC BLU1 #3 and #4
- 2
Expected voltage: 7V to 12V
- 3
If outside range, fan motor or wiring is faulty
This Error Applies To
Samsung BRF365200A Series Refrigerators
Related Error Codes
Ice maker temperature sensor is broken or not connected.
Freezer defrost sensor is broken or not connected properly.
Refrigerator defrost sensor is broken or not connected.
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Condenser fan is not spinning or its sensor is not working.
Refrigerator temperature sensor is broken or not connected properly.
Pantry compartment temperature sensor is broken or not connected.
Freezer temperature sensor is broken or not connected properly.