What Cb means
The washer is running calibration to relearn how to sense load weight. It turns the drum back and forth for 1 to 3 minutes and ends by itself.
Also shown as: C6, depending on the model.
Likely causes
- Calibration was started, usually at installation
Safe first checks
- Make sure the drum is completely empty, then let calibration finish. If anything was inside, remove it and run calibration again.
When to stop
No action needed unless calibration never finishes.
Checked against: Samsung US: Washing machine information and error codes. Codes can differ by model and year, so confirm with your owner's manual.