6 min read
Why Your Garage Door Won't Open
A garage door that refuses to open turns an ordinary morning into a problem. Before you assume the worst, it helps to work through the causes in order, because a few of them take thirty seconds to rule out.
Here is how we approach the diagnosis on a service call, starting with the simple things.
1. Power and remote basics
Confirm the opener has power — the light should come on and the outlet should be live. Check whether a GFCI outlet has tripped, which is common in garages after a wet spell.
Try the wall console as well as the remote. If the wall button works and the remote does not, the problem is the remote battery, its programming or the receiver — not the door.
2. The manual lock or vacation mode
Many doors have a slide lock on the track, and many openers have a lock or vacation mode on the wall console. Either will stop the door dead while everything else looks normal. It is worth a look before anything else.
3. The emergency release cord
If the opener motor runs and the carriage travels along the rail but the door stays still, the trolley has probably been disconnected from the door arm — often by someone pulling the red release cord.
Re-engaging it is usually straightforward, but only if the door is balanced and undamaged. If it resists, stop.
4. A broken torsion or extension spring
This is the most common serious cause. Listen for a loud bang beforehand, look for a gap in the spring coil, and note whether the opener strains and stops after a few inches.
A door with a broken spring should not be operated. See our guide on the signs of a broken spring for a fuller checklist.
5. A snapped or unwound cable
If the door sits crooked, hangs lower on one side, or has a cable dangling beside the track, a lift cable has failed or jumped its drum. The door is unstable in this state and will bind if you try to force it.
6. A stripped opener drive gear
A grinding noise from the motor head while nothing moves usually means the plastic drive gear has worn out. It is a repairable fault and does not necessarily mean a new opener.
7. Off-track or obstructed door
Rollers out of the channel, a bent track section or something wedged under the door will all stop travel. Look along both vertical tracks for a roller sitting outside the channel or a visible dent.
Do not try to lever the door back into the track — the door is heavy and still under spring tension.
What is safe to check yourself
Power, remote batteries, the lock, obstructions and the release cord are all reasonable homeowner checks. Anything involving springs, cables, drums or the track should be left to a technician with the right tools.
If the simple checks come up empty, call Garage Door Repair Gurus at (971) 298-5069. We diagnose the actual cause on site and explain your options before any work starts.