A door problem
The opener only guides a door that is already balanced. If a spring is broken or a cable has slipped, the door itself is the problem, even though the opener is what seems to fail.
The door is the likely cause when it feels very heavy, hangs crooked or has left the track. Those call for spring, cable or track repair first.
- Clue
- Door is heavy or uneven
- Opener behavior
- Strains, stalls or reverses
- Look at first
- Springs, cables or track