What 40E means
The fan that cools the ice compartment isn't working correctly.
Also shown as: 40C, depending on the model.
Likely causes
- Fan blocked by ice
- Fan motor fault
Safe first checks
- Take a photo of the code and request service.
When to stop
A technician needs to check the fan.
Checked against: Samsung US: Samsung refrigerator error codes. Codes can differ by model and year, so confirm with your owner's manual.