Chamberlain code 3-3
The battery light keeps flashing green
Call a proThe circuit that charges the backup battery has a fault. It sits on the logic board.
What to do: The logic board needs replacing. Call a pro.
From the maker’s manuals:
- Chamberlain manual, PDF page 40 for B980
- Chamberlain manual, PDF page 43 for the B4603T and 4 more models
Which models each manual covers
- Chamberlain manual for model B980
- Chamberlain manual for models B4603T, B4643T, B4613T, B6713T, B6753T
Not this one? Look up another Chamberlain code
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.
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