Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codeC1 / CL1
ApplianceDryer
Quick answer
C1 and CL1 appear after a Vent Blockage test when laundry is detected in the drum.
Model compatibility: Samsung reuses codes across series and model years, so C1 / CL1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
C1 (or CL1) is a Vent Blockage test result: laundry detected in the drum.
You will only see C1 or CL1 after a Vent Blockage test has been run on your Samsung dryer. It means laundry is detected inside the drum, so the test cannot give a result.
Do this
Remove the laundry and try the test again. If the error occurs when the drum is empty, request service.
Related test results
CL: Child Lock, a similar-looking display that is not a fault.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.