# Chamberlain garage door opener error codes

Source page: https://garagedoorscience.com/code/chamberlain-error-codes

- 1-1: The door won’t close because the safety sensors aren’t connected (check this first, then a pro). https://garagedoorscience.com/code/chamberlain-error-codes/1-1
- 1-2: The door won’t close because a sensor wire is shorted (check this first, then a pro). https://garagedoorscience.com/code/chamberlain-error-codes/1-2
- 1-3: The wall button doesn’t work (check this first, then a pro). https://garagedoorscience.com/code/chamberlain-error-codes/1-3
- 1-4: The door won’t close because the sensors can’t see each other (you can check this). The manuals give code 4-6 the same meaning. https://garagedoorscience.com/code/chamberlain-error-codes/1-4
- 1-5: The door moves a few inches, then stops or goes back (call a pro); You hear one click and nothing moves (call a pro); The opener hums for a second or two and nothing moves (call a pro). https://garagedoorscience.com/code/chamberlain-error-codes/1-5
- 1-6: The door keeps drifting after it stops (check this first, then a pro). https://garagedoorscience.com/code/chamberlain-error-codes/1-6
- 2-1 to 2-5: No movement and no sound (call a pro). https://garagedoorscience.com/code/chamberlain-error-codes/2-1-to-2-5
- 3-2: The opener can’t learn or keep where the door should stop (call a pro). https://garagedoorscience.com/code/chamberlain-error-codes/3-2
- 3-3: The battery light keeps flashing green (call a pro). https://garagedoorscience.com/code/chamberlain-error-codes/3-3
- 4-1 to 4-4: The door starts, then stops or reverses (check this first, then a pro). https://garagedoorscience.com/code/chamberlain-error-codes/4-1-to-4-4
- 4-5: The opener runs a few inches, stops and goes back (call a pro). https://garagedoorscience.com/code/chamberlain-error-codes/4-5
- 4-6: The door won’t close because the sensors can’t see each other (you can check this). The manuals give code 1-4 the same meaning. https://garagedoorscience.com/code/chamberlain-error-codes/4-6

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.