Door goes up fine. Won't come back down. Or it starts closing and reverses right back up. This is literally the most common call we get — probably three or four times a week.
People panic a little because the garage is sitting wide open. Everything's exposed — the bikes, the tools, the chest freezer full of elk meat, whatever. And it's Central Oregon, so you've also got the wind blowing smoke or snow or dust into a garage that won't close. I get it. Let's figure out what's going on.
Most of the time this is a quick fix. Like, embarrassingly quick. The kind of fix where you'd be annoyed at yourself for calling a technician. So before you pick up the phone, work through this list. I've arranged it roughly by how likely each cause is, starting with the one that accounts for about half of all the "won't close" calls I take.
Work Through This List
Start with the sensors. It's always the sensors.
Photo-eye sensors blocked or misaligned. Every garage door opener sold since 1993 has two small sensors mounted near the bottom of the door opening, one on each side, about six inches off the floor. They shoot an invisible infrared beam between them. If anything breaks that beam — a person, a dog, a bicycle wheel — the door reverses so it doesn't crush whatever's in the way. That's a federal safety requirement and it works well. The problem is these sensors are sensitive, and a bunch of things interfere with them that have nothing to do with an actual obstruction.
Spider webs across the lens. This is the number one sensor issue in Central Oregon and it's not even close. Spiders love those warm corners of the door frame, and a single strand across the tiny plastic lens is enough to block the beam. Dirt buildup on the lens — our volcanic dust and summer smoke coat everything. A sensor that got bumped out of alignment by a kid's bike or a broom handle leaning against it. Direct afternoon sun hitting the receiver lens and overwhelming the infrared signal — this one's seasonal, usually shows up in summer when the sun angle gets low enough to shine straight into the sensor around 4 or 5 PM.
Check the indicator lights on each sensor. You should see two solid lights — one green, one amber or green. If either light is blinking, the sensors aren't communicating. If a light is completely off, you might have a wiring issue (keep reading). Fix: wipe both lenses with a dry cloth. If the lights are blinking, gently adjust the bracket on the blinking side until both lights go solid. Loosen the wing nut, nudge the sensor, retighten. Two minutes, no tools beyond maybe a wrench for the bracket nut.
Something physically in the door's path. Related to the sensors but simpler — there's actually something sitting in the doorway. A rake handle leaning against the wall that pokes into the path. A kid's scooter. The recycling bin pushed two inches too close. A garden hose draped across the threshold. In winter, a ridge of ice at the bottom where overnight freeze built up right where the door meets the floor. Walk the full width of the opening, clear everything within six inches of either side, and check the floor threshold for ice or debris bumps. Takes thirty seconds.
Sensor wiring damaged. If both sensor lights are completely dark — not blinking, dark — the sensors are probably fine but the wires feeding them are broken. Each sensor connects to the opener with thin low-voltage wires that run along the wall and ceiling. Those wires are vulnerable. Mice chew through them — extremely common in Central Oregon garages once fall hits and rodents come inside for warmth. A single chew through the insulation breaks the circuit. Wires can also get pinched against the track during door operation, snagged by a staple driven too deep during installation, or corroded at the terminal connections over the years.
Trace the wire visually from each sensor to the opener unit. Look for chew marks, bare copper showing through damaged insulation, or a pinch point where the wire crosses near moving hardware. If you find a break, splice it with wire nuts and wrap it with electrical tape. It's low voltage — no shock hazard — but if you're not comfortable stripping wire, call and we'll handle it. Quick fix either way.
Force and limit settings off. Your opener has adjustable settings that control how hard the motor pushes the door down (close force) and how far it travels before stopping (close limit). These get calibrated during installation but can drift as springs age, weather seals compress, or the house settles. If the close force is set too low, normal friction from the tracks and weather seal triggers the safety reverse — the door thinks it's hitting something and reverses, even though the path is clear. If the close limit is set too short, the door stops before reaching the floor. Set too long, and it slams the floor too hard and bounces back up.
Find the adjustment controls on your opener — usually two small dials or screws labeled Force and Limit, or Up and Down with separate controls for each direction. Newer openers might have digital settings on the wall panel. Bump the close force up by a small increment, a quarter turn, and test. Repeat until the door closes without reversing. For the limit, adjust so the door just reaches the floor with the weather seal lightly compressed. You shouldn't see daylight under the door, but the opener arm shouldn't bow or flex from pushing too hard either. Go in small increments. Do not crank the force to maximum — that defeats the safety reverse, and the safety reverse exists so the door doesn't close on a person or a pet.
The remote is dead. I know. It sounds too obvious. But I've driven to houses where the problem was a dead CR2032 battery in the remote. The wall button inside the garage worked fine. The remote didn't. Three-dollar fix. Before you troubleshoot anything mechanical, try the wall-mounted button inside the garage. If that closes the door but the remote doesn't, swap the remote battery. If the wall button doesn't work either, now you know the problem isn't the remote and you can move on to the opener or the door itself.
If a new battery doesn't fix the remote, the remote might have lost its programming — this can happen after a power outage or if the opener's logic board got reset. Consult your manual for the "Learn" button procedure. Sixty seconds of reprogramming usually sorts it out.
Lock mode accidentally engaged. Some openers have a lock feature on the wall control panel — a button or switch that disables the remotes as a security measure. It's easy to bump accidentally, especially if you have kids who press buttons. If your wall button works but your remotes don't, and a new battery didn't help, check whether lock mode is on. The wall control usually has a small indicator light for this. Disengage it and try the remote again. I've seen this stump people for days before they figure it out.
Power disruption. Check the obvious. Is the opener plugged in? Did someone unplug it to use the outlet for a shop vac or a charger and forget to plug it back in? Did a breaker trip? We get power flickers in Central Oregon during wind events, and sometimes the breaker for the garage circuit pops and nobody notices until the door won't respond. Walk into the garage and look at the opener. If there are no lights on the unit at all, it's not getting power. Check the outlet, check the breaker panel.
Disconnect cord pulled. There's a red-handled cord hanging from the opener rail — that's the manual release. Pulling it disengages the door from the opener so you can operate the door by hand during a power outage. If somebody pulled that cord (maybe during an outage, maybe a kid grabbed it), the opener motor runs but the trolley isn't connected to the door, so the door doesn't move. You'll hear the motor and see the trolley moving along the rail, but the door just sits there. Re-engage it: pull the cord toward the opener (not straight down), then run the opener once. The trolley should click back into the door bracket.
If None of That Worked
Everything above is stuff you can check and fix yourself with no tools or basic tools in a few minutes. If you've gone through the whole list and the door still won't close, we're into territory that usually needs a professional. Here's what I'd be looking at.
Broken torsion spring. If the opener motor runs when you press the button but the door barely moves, doesn't move at all, or creeps down a few inches and stops, the spring might be broken. The torsion spring — the big coil on a shaft above the door — does the heavy lifting. It counterbalances the door's weight so the opener only has to move ten or fifteen pounds of effective resistance instead of the full 150 to 300 pounds. When a spring snaps, the opener is suddenly trying to lift the entire weight of the door, and it can't. It wasn't built for that.
Look at the spring assembly from inside the garage. A broken spring has a visible gap — you'll see it split into two pieces with a space between them. You might have heard a loud bang at some point, like a gunshot or a car backfiring. That was it breaking. Some people hear it and check right away. Others heard a bang three days ago while they were in the kitchen and didn't connect it to the garage.
Two things not to do. Do not keep pressing the button hoping it'll work. Every cycle with a broken spring strains the opener motor against a load it was never designed for. You'll burn out the motor and turn a spring replacement into a spring replacement plus an opener replacement. I see this regularly — one broken part becomes two because the homeowner kept hitting the button. And do not attempt to replace the spring yourself. Torsion springs are wound under extreme tension — 200-plus pounds of stored energy. A spring that releases unexpectedly can cause severe injury or death. Not a scare tactic. A fact. Call a professional for spring replacement. We carry common sizes on every truck and can usually have you back in operation the same day.
Track obstruction or misalignment. The door runs on vertical tracks on each side that curve into horizontal tracks along the ceiling. If something's in the track — a pebble, a chunk of debris, a glob of hardened old grease — the roller hits it and the door stalls partway down. Run your hand carefully along the inside of both tracks with a flashlight and clear anything that shouldn't be there. Wipe the track clean with a rag but don't lubricate it — tracks should be dry.
If the tracks themselves are bent or out of alignment — from a car bumping them, a ladder leaning on them, or frost heave shifting the slab they're anchored to — the door can bind at a specific point during travel. You might hear scraping or see the door hesitate at one spot on the way down. Track realignment is a pro job. The tracks support the full weight of the door, and loosening mounting brackets to adjust them while the door is in the system creates a real risk of the door coming off the track. A 200-to-300-pound door dropping out of its tracks is as dangerous as it sounds.
Broken lift cable. Cables connect the bottom of the door to the spring assembly and work with the springs to lift the door evenly. When a cable snaps, one side of the door loses its support. The door hangs crooked — one side higher than the other — or it jams in the tracks because it's trying to travel at an angle. You might see a cable hanging loose or coiled on the floor on one side.
Do not try to operate the door if a cable is broken. Don't use the opener and don't try to move it by hand. The uneven load puts extreme stress on the remaining cable, the tracks, and the spring. Forcing it can bring the door off the track entirely. Cable replacement requires releasing spring tension, which means handling torsion springs — see above for why that's never a DIY job. Call for garage door repair and leave the door where it is until a technician gets there.
Opener logic board failure. If the opener has power, the sensors are fine, the spring is intact, and nothing is binding or blocking — but pressing the button just produces a click or a hum or nothing at all — the logic board inside the opener might have failed. Lightning strikes, power surges, and age can all fry a logic board. On some openers, a replacement board is available and cost-effective. On others, especially older units, replacing the whole opener makes more sense. This is a diagnostic call a technician can make pretty quickly by testing the board outputs.
Stripped opener gear. Chain drive openers have a plastic drive gear inside the motor housing that meshes with a worm gear to move the chain. Over years, that plastic gear wears down. When it's stripped, the motor runs — you can hear it humming — but the chain doesn't move because the gear teeth are gone. A gear kit replacement can fix this for a lot less than a new opener, assuming the motor itself is still healthy. But pulling apart an opener to replace a gear set is solidly in professional territory unless you're very comfortable with mechanical repair.
Here's my honest breakdown on what you should try yourself versus what needs a call. The sensors, obstructions, remote batteries, power checks, disconnect cord, and lock mode — that's all you. Any homeowner can handle those safely, and they account for something like 60 to 70 percent of all "won't close" situations. Broken springs, snapped cables, track realignment, and opener internals — those are professional repairs. The safety risks are real and the tools required aren't in most people's garages.
If you've worked through the easy stuff and the door still won't close, or if you've identified a broken spring or snapped cable or bent track, don't force it. That's how a single problem becomes multiple problems, and multiple problems are always more expensive than one.
Call Brokentop Garage Doors at 541-203-7676 for same-day repair across Bend and Central Oregon. We carry sensors, cables, springs, rollers, remotes, and all common parts on every truck. No ordering parts and waiting. No second trip. I'll diagnose the cause, give you a straight answer on what it'll take to fix, and get your door closing again — almost always in a single visit, usually under an hour.
We serve Bend, Redmond, Sisters, Sunriver, La Pine, Prineville, Tumalo, Terrebonne, Powell Butte, and everywhere else in Central Oregon. Licensed Oregon contractor, CCB #209697. Over 630 Google reviews with a 4.9-star average — because we show up, we fix it, and we don't charge for things that don't need fixing.
Tyler and Ashley Ottesen own Brokentop Garage Doors, a licensed Oregon contractor (CCB #209697) serving Central Oregon since 2016. Tyler is a CHI Master Installer and LiftMaster Certified Installer with over a decade of hands-on experience diagnosing and repairing residential and commercial garage doors.