Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-01
- Applies to Samsung refrigerators
- Confidence medium
- Also displayed as 40C
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
The control is not receiving normal feedback from the fan that circulates cold air through the ice compartment.
Most likely causes
- Ice buildup is blocking the ice-room fan
- The fan motor has failed
- A door or ice-room seal is leaking humid air
- A defrost, drain, harness or control issue is present
Safe checks for the owner
- Turn off the ice maker if the compartment is warming or making scraping noises.
- Check that doors and the ice bucket are seated correctly.
- Do not pry interior panels or chip hidden ice.
Estimated U.S. repair cost
$280–$580, depending on model, access, parts availability and local labor.