Safety: Garage doors are heavy and spring/cable systems can be under significant tension. Do not loosen or disassemble high-tension hardware unless you are qualified to do so.
Common Opener Symptoms
The motor may run without moving the door, the remote may work intermittently, the door may reverse unexpectedly, or the opener may click or grind without completing a cycle.
Opener or Door Problem?
A broken spring, binding roller, off-track condition, or heavy door can overload an opener. Diagnosing the door itself is an important part of diagnosing the opener.
Controls and Safety Devices
Remotes, keypads, wall controls, and photo-eye sensors can all affect operation. Testing these separately helps narrow down the source of the problem.