A door that stops halfway is doing one of two things: it's hitting resistance it thinks is an obstruction, or the opener has been told that halfway is the end. Which one depends on whether it stops in the same spot every time.
Stops in the same spot every time
- Travel limits set wrong — the opener has limit settings that tell it where 'fully open' and 'fully closed' are. If they drifted or were set after a repair, the door stops short. Most openers have two adjustment screws or a settings mode for this; the manual shows where.
- Something in the track — a bent section, a stray screw, or a roller that's chipped will stop the door at the same height. Look along both tracks with a flashlight.
- A worn spot in the door — a hinge that's failing or a panel seam that's spread will bind at the same point in travel.
Stops in different spots, or reverses
- Force setting too low — the opener is reading normal effort as an obstruction. This is also an adjustment, but be careful: turning force up masks a real problem and can defeat the safety reverse. If you need to crank it more than a little, something else is wrong.
- Spring losing tension — the door is heavier than the opener expects, so the motor gives up mid-lift. Disconnect the opener and lift the door by hand: it should float at waist height. If it drops or feels heavy, the springs need adjustment or replacement, and that's a pro job.
- Safety sensors — a door going down that stops and reverses is the photo-eyes. Check for a blinking sensor light and anything in the beam.
- Cold weather — lubricant thickens and the door drags. A garage-door lubricant on rollers, hinges, and springs solves most seasonal stalling.
What's safe to try
Clearing the tracks, lubricating the moving parts, checking the sensors, and adjusting travel limits per the manual are all fine. Leave the springs alone, and don't keep raising the force setting — an opener set to push through resistance is an opener that will push through a car bumper or a person.
When to call and what it usually costs
If the door fails the balance test, if a track is bent, or if adjustments don't hold, have a technician look. A limit and force calibration with a tune-up is a minor visit. Spring work costs more because it's tensioned work with parts. The pro confirms the exact price in person after seeing the door.
Describe the problem — Roger matches you to one vetted local pro and books it. $0 to you.
Common questions
- Why does my garage door stop halfway when opening?
- Either the travel limit is set short, something is obstructing the track, or the springs have lost tension and the opener can't lift the full weight. If the door feels heavy when lifted by hand with the opener disconnected, it's the springs.
- Why does my garage door go down halfway and come back up?
- The safety sensors are seeing an obstruction or are out of alignment, or the force setting is reading normal resistance as a blockage. Check the sensors first — one will blink if they're misaligned.
- Is it safe to increase the force setting on my garage door opener?
- Only a small adjustment, and only if the door is balanced. Raising the force to push through a real problem defeats the safety reverse and can damage the door or injure someone.