Craftsman
Error Codes
Blink 2-1
Craftsman
Garage Door Opener
Blink 2-1 on a Craftsman opener means the wall control wires are shorted …
Blink 4-6
Craftsman
Garage Door Opener
Blink 4-6 means the photo eye sensors aren't aligned — the safety beam between …
3-5
Craftsman
Garage Door Opener
Blink code 3-5 on a Craftsman opener means a logic board or travel limit …
4-2
Craftsman
Garage Door Opener
Blink code 4-2 means a safety sensor wire is making contact with a grounded …
1-1
Craftsman
Garage Door Opener
Craftsman openers (manufactured by Chamberlain) use the same blink-code system. …