!
error Chamberlain
Error Code 1 UP / 3 DOWN
The door control will not function. The wires for the door control are shorted or the door control is faulty.
? What Causes This
The wires for the door control are shorted or the door control is faulty.
✓ How to Fix It
- Inspect door control wires at all staple and connection points.
- Replace wire or correct connections as needed.
- Replace door control if faulty.
Source: page 37 of the official manual
From the manual
This error code appears in:
Chamberlain Chamberlain Garage Door Opener