On the covered Samsung refrigerator platform, 21E means freezer fan error. Samsung says the electronics are not sensing rotational feedback from the fan when it is supposed to be turning, which usually means the fan is frozen up, from a door left open or a gap in the door gasket, though it could also be fan motor failure. First, check that the doors close completely and that the gaskets seal all the way around.
Differential
Likely causes of “Samsung refrigerator code 21E”, and how to tell them apart
- 1
A frozen-up freezer fan
What separates it 21E shows after the freezer door was open or the gasket was loose
How to confirm Samsung says the fan is usually frozen up, caused by the door left open or a gap in the door gasket
- 2
A packed freezer blocking the door
What separates it The door does not close completely, which points to a packed freezer blocking the door
How to confirm Make sure the unit is not so full that it prevents the doors from closing completely
- 3
A failed fan motor
What separates it The freezer is clear of frost and the code stays
How to confirm Samsung says it could also be fan motor failure
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether frost covers the freezer back wall
- Whether the door gasket makes full contact
- Whether the freezer is packed tight
Try in this order
0 of 5 completedWhat to do first
ReversibleCheck that the doors close completely and that the gaskets seal all the way around.
Correct only the documented fault domain
ReversibleSamsung says you can defrost the unit if you wish, and otherwise to request service. In addition to defrosting, make sure the unit is not packed so full that the doors cannot close completely, and that the door gaskets make full contact all the way around the door.
Understand the code
Reversible21E means the electronics are not sensing rotational feedback from the fan when it should be turning.
Defrost if you wish
ReversibleIf you wish to defrost the unit, you can; otherwise request service.
Check the door seal
ReversibleMake sure the unit is not packed so full that the doors cannot close, and check the door gaskets make full contact all the way around the door.
Model-specific
What is true of this model and not of its siblings
- Parts named
- Freezer fan; door gasket.
Stop boundary
When this stops being a self-service repair
- !Do not use a hair dryer to speed defrosting
Evidence ledger
Sources behind this answer
Where the manufacturer's article stops. Samsung's frost guide supplies the door and gasket checks.
Exact questions
Common questions
What does 21E mean on a Samsung refrigerator?+
Freezer fan error. Samsung says the electronics are not sensing rotational feedback from the fan when it is supposed to be turning, which usually means the fan is frozen up, from a door left open or a gap in the door gasket, though it could also be fan motor failure.
What does 21E mean on a Samsung fridge?+
A freezer fan error.
Could the motor have failed?+
Yes.
Should I defrost?+
You can; otherwise request service.