# Chamberlain code 2-1 to 2-5: no movement and no sound

Source page: https://garagedoorscience.com/code/chamberlain-error-codes/2-1-to-2-5

## No movement and no sound

The maker points to the opener’s logic board, its main circuit board.

**Call a pro.** This is a part replacement inside the opener. Call a pro.

From the maker’s manual:
- Chamberlain manual for model B980, PDF page 40: https://cgi.widen.net/content/vlzppckqt9/original/114a5126.pdf
- Chamberlain manual for models B4603T, B4643T, B4613T, B6713T, B6753T, PDF page 43: https://cgi.widen.net/content/zwq7paf7l4/original/114-5739-000.pdf

Garage Door Science isn’t affiliated with the opener makers LiftMaster, Chamberlain or Genie. Each meaning is our summary of the maker’s own manual, which we link.