Few things are as frustrating as a garage door that starts moving and then just stops partway. Sometimes it stalls on the way up, sometimes it reverses on the way down, and sometimes it hangs there until you jiggle the button. The good news is that a door stopping halfway almost always points to one of a handful of causes. Here is how to figure out which one you are dealing with.
Something in the Track
The simplest cause is a physical obstruction. A stray object, built-up debris, or a small dent in the track can stop a door in its tracks, literally. Look along both sides for anything jamming the rollers, and check the track for bends or damage. If the door binds or grinds at the same spot every time, that spot is where to look. A track knocked out of alignment is a job for a technician, and forcing the door will only make it worse. Our guide to a garage door off its track covers when this crosses into repair territory.
Worn or Dry Rollers
Rollers that are cracked, rusted, or dry can drag and stall the door mid-travel, especially on older doors that have never been serviced. If the door is also loud and shaky, worn rollers are a likely suspect. A little lubrication can free things up temporarily, and our guide on how to lubricate a garage door walks through it, but cracked rollers need roller replacement to fix for good.
Dirty or Misaligned Safety Sensors (Closing Only)
If your door reverses or stops only when closing, look at the two small sensors near the floor on each side. When their beam is blocked, dirty, or knocked out of alignment, the opener refuses to let the door close and sends it back up as a safety measure. Wipe the lenses clean and make sure they point straight at each other with steady lights. Our post on garage door safety sensors shows exactly what to check.
Force and Travel Settings
Openers have adjustable force and travel limits that tell the door how hard to push and where to stop. If those settings drift, the opener can think it has hit an obstruction and stop or reverse partway. These adjustments are usually small dials or buttons on the motor unit, but setting the force too high defeats the safety features that protect people and cars, so this is one to get right or leave to a pro.
A Worn or Broken Spring
This is the big one. Your springs carry the door's entire weight, and when they weaken or break, the opener suddenly has to lift far more than it was designed to. The result is often a door that struggles partway up and then stalls or crawls. Pull the release cord and try lifting the door by hand: if it feels extremely heavy or will not stay open on its own, the springs are the problem. Spring work is dangerous to do yourself, so this calls for professional spring repair. Our guide to the signs of a broken spring can help you confirm it.
An Opener at the End of Its Life
If the springs are fine, the track is clear, and the door still stalls, the opener itself may be wearing out. Motors lose strength over the years, and an old unit can run out of muscle halfway through the lift. If your opener is more than 15 years old and struggling, replacing it with a modern garage door opener is often the better long-term fix.
When to Call a Technician
A quick check of the track, rollers, and sensors is fair game for any homeowner, and a twice-a-year maintenance visit prevents most of these problems in the first place. But anything involving springs, cables, or force settings is best left to a professional, both for your safety and to avoid a bigger repair. If your door is stalling and you cannot spot an obvious obstruction, do not keep hitting the button and straining the opener.
Stuck with a door that will not go all the way up or down? Our team provides same-day garage door repair across metro Atlanta with a free on-site estimate, and we will find exactly why it is stopping and get it moving smoothly again.