A family in Sisters called us last year. Their four-year-old was playing near the garage when the door started closing. The sensor didn't catch her in time -- it got her coat sleeve before it reversed. She was fine. Scared, but fine. That's the call that still sits with me.
It was a sensor alignment issue. One of the photo-eye units had been bumped -- probably by a bike, the dad thought -- and the beam was pointed about two inches too high. Two inches. The door still "worked." It would close and open with the remote, no problem. But the invisible safety beam that's supposed to catch a kid standing in the doorway was shooting over this little girl's shoulder height instead of across her knees where it belonged. Nobody noticed because everything looked normal from the outside.
I test my own door every month. I have two kids. After that call in Sisters, I went home that same evening and ran every test on my door, even though I'd done it three weeks earlier. I wasn't being rational about it. But when you spend an afternoon looking at a coat sleeve with a black scuff mark from a garage door bottom seal and a mother who's still shaking two hours after the fact, rational isn't really the point.
What I want to do here is walk through what keeps your family safe around a garage door, how to make sure it's actually working, and what to do if it's not. Not as a lecture. I'm not going to give you a list of rules and wag my finger. I'm going to tell you what I know from a decade of working on these things, what I do in my own garage, and what I wish every parent in Central Oregon understood about the heaviest moving object in their house.
What's Supposed to Protect Your Family and How to Tell If It's Working
Modern garage door openers have multiple safety systems. They're required by federal law, and they work well when they're maintained. But "when they're maintained" is doing a lot of work in that sentence.
Photo-eye sensors are the most important piece. Two small boxes, one on each side of the door opening, about six inches off the floor. One sends an infrared beam, the other receives it. If anything breaks that beam while the door is closing -- a kid, a dog, a bicycle tire, a leg -- the door stops and reverses. Every opener manufactured after January 1993 has them. They're the reason garage door fatalities in children dropped dramatically in the mid-nineties.
The problem is that they're also the thing most likely to go wrong without anyone noticing. They get bumped by lawn equipment, by kids on bikes, by someone moving a trash can. The alignment drifts a fraction of an inch and the beam is no longer hitting the receiver dead center. It still works, technically. But the margin is thinner. And then it drifts a little more, and the beam is barely making contact, and one day a vibration from the door moving shakes it just enough that the signal drops and the door keeps going down because it thinks the beam is broken when really it can't see the beam at all and defaults to -- well, it depends on the opener. Some default to staying open, which is safe. Some don't.
The indicator lights on the sensors tell you the state of things. One green, one amber, both solid and steady means they're talking to each other properly. A blinking light means something's off. Most modern openers will refuse to close via remote if the sensors can't communicate -- you can still close it by holding the wall button continuously, which overrides the sensors, but the walk-away-and-it-closes function is disabled. That's the opener telling you there's a problem. Don't just hold the wall button as a workaround and forget about it. Fix the sensors.
Auto-reverse is the backup system. When the door physically contacts something while closing, it's supposed to stop and reverse. The opener's motor monitors how much force it takes to move the door, and when the resistance exceeds a threshold, it reverses direction. This is the second line of defense -- if the sensors miss something (or if the object is below the beam height, which we'll get to), the auto-reverse catches it on contact.
The sensitivity is adjustable. There are force-setting dials on the opener -- usually two small knobs, one for close force and one for open force. If the close force is set too high, the door pushes too hard before it decides to reverse. On a child's arm or a pet's body, that extra force is the difference between a scare and an injury. If it's set too low, the door reverses randomly during normal operation from minor friction in the tracks. Proper calibration matters, and it's part of every maintenance visit we do. But between visits, you can test it yourself, and you should.
The manual release is the red cord hanging from the opener rail inside your garage. Pulling it disconnects the door from the motor so you can move it by hand. It's there for power outages, but it's also there for emergencies. If someone is trapped under a door and the motor won't stop, pulling that cord takes the motor's force out of the equation immediately. Every person in your household old enough to pull a cord should know where it is and what it does. Walk them through it once. It takes thirty seconds.
Timer-to-close is on most newer openers with myQ or similar smart features. It automatically closes the door after a set interval -- one, five, or ten minutes -- with a warning beep and flashing lights first. It prevents the left-the-garage-open-all-day scenario that every homeowner has lived through at least once. Good feature. But it creates a specific concern with kids and pets that I'll come back to.
Here's what I do at my own house, every month, and what I'd tell any parent to do. Takes less than ten minutes and you don't need any tools except a broom and a piece of scrap lumber.
Sensor test. Open the door all the way. Press the remote or wall button to close it. While it's moving down, wave a broom handle through the space between the two sensors at the bottom of the opening. The door should stop and reverse immediately. Not after a delay. Not after dropping another few inches. Immediately. If it doesn't, clean both sensor lenses with a dry cloth and try again. If it still doesn't reverse, stop using the remote to close the door and call for a safety inspection. Do not keep using an opener with failed sensors in a house with kids or pets.
Auto-reverse test. Lay a 2x4 flat on the floor in the center of the door opening. Close the door. When the bottom edge hits the wood, the door should reverse instantly. It should not push the board across the floor. It should not compress it. It should not grind down on it for a second before it decides to go back up. The moment the bottom seal touches that 2x4, it should stop and reverse. If it doesn't, the force settings need adjustment. This is a critical failure. A door that won't reverse on a solid piece of lumber will not reverse on a child's body.
Balance test. Pull the red emergency release to disconnect the opener. Lift the door by hand to about waist height -- three or four feet off the ground -- and let go. It should stay put. Not fall. Not fly up. Just hang there. If it drops, the springs are losing tension, which means the door is effectively heavier than the counterbalance system can handle. That affects both safety and opener life. If it won't hold at half-height, the springs need professional adjustment.
Visual check. While you're in there, look at the cables -- the wire ropes running from the bottom brackets up to the drums on the spring shaft. Any fraying or unraveling means the cable is compromised. Look at the rollers. Cracked or frozen rollers cause rough operation and can derail the door. Look at the springs for gaps in the coil (a gap means it's already broken), rust, or uneven spacing. Look at the tracks for dents or bends. You're looking, not touching. Cables and springs are under serious tension and they're not DIY items. But visual inspection is free and it catches problems before they become emergencies.
Four tests. Ten minutes. I do them on the first of every month. It's become habit, like checking the smoke detectors. The day it becomes important is the day you'll be glad you bothered.
Kids, Pets, and the Specific Things That Worry Me
I want to be honest about something. The safety features on modern openers are good. They're really good. The engineering has come a long way since the pre-1993 openers that had no sensors at all and would drive the door down with full motor force regardless of what was underneath. The modern systems work. But they're not infallible, and children and pets are the two populations most likely to find the gaps.
Kids run under closing doors. They just do. The "beat the door" game is universal. Every kid in the history of garage doors has tried it. The sensors should catch them, and almost always do. But "almost always" isn't the same as "always." If the beam is drifting high, if the child ducks below the beam, if the sensors are dirty from pollen season in Bend -- there's a window. Teach your kids the rule: the door has to be fully open and completely stopped before anyone walks under it. Not almost open. Not slowing down. Stopped. Enforce it consistently. It's the same principle as looking both ways before crossing the street.
The wall button and remotes are not toys. A kid pressing the button while someone else is near the door creates a hazard. The recommended mounting height for the wall button is five feet -- above most young children's reach. If yours is lower, it's worth moving. We can do that during any service visit, or you can do it yourself if you're comfortable with basic wiring.
The gaps between door panels are pinch points. When the door moves, the panels hinge relative to each other as they transition from vertical to curved to horizontal in the track. Fingers in those gaps get crushed. Newer doors have pinch-resistant panel designs that minimize the gap, but older doors may have joints wide enough to fit a small hand. Teach your kids that the door panels are not something to touch when the door is moving. Ever.
And the big one for really little kids: the door itself weighs between 150 and 400-plus pounds. Even with springs counterbalancing most of that weight, a door falling off a track or dropping because of a cable failure comes down with force. The manual release cord -- which looks interesting to a child -- shouldn't be something kids play with. If a child pulls the release while the door is open and the springs are weak, the door can drop.
Pets are a different problem because you can't explain anything to them. Photo-eye sensors are mounted about six inches off the floor. That height catches a child's legs and most dogs. But a small cat, a dachshund lying down, a puppy -- they can pass under the beam without breaking it. The sensor literally can't see them. For households with small animals, the sensors are not a complete safety net. You need to visually confirm the door area is clear before you close it. Watch it all the way down.
The timer-to-close feature is where pets become a particular concern. If your door is set to auto-close after five minutes, and your cat wanders into the garage during those five minutes, the door starts closing with a warning beep. Your cat has no idea what the beep means. A large dog will break the sensor beam. A small animal might not. If you use timer-to-close and have pets, either set a longer timer, disable it, or make a habit of accounting for all animals before the timer kicks in. Some smart opener systems send a phone notification before auto-closing, which gives you a chance to override.
For homes with small pets who regularly pass through the garage, we can install a secondary sensor pair mounted lower -- two to three inches off the ground instead of six. It's a straightforward modification, just a second set of photo-eyes wired into the same circuit. That brings the detection zone down to where a small cat or dog actually is, instead of above where they are. Ask about it during a safety inspection.
I need to address older openers directly because this is the single biggest safety risk I encounter in Central Oregon and people don't realize it. If your opener was installed before 1993, it may not have photo-eye sensors or auto-reverse at all. The federal mandate requiring these features only applies to openers manufactured after January 1, 1993. It wasn't retroactive. Openers from the eighties and early nineties just close the door with full motor force, and if something is in the way, the motor keeps pushing. That's not a theoretical danger. It's the exact scenario that killed dozens of children before the government stepped in.
Central Oregon has plenty of homes from that era. Older neighborhoods in Bend, parts of Redmond, La Pine. If you're in a house that was built before 1993, or if you moved in and aren't sure when the opener was installed, check. Look for sensor units at the bottom of the door opening. If they're not there, you have a pre-mandate opener. Retrofitting sensors onto an old opener is sometimes possible, but honestly, it's usually more practical to replace the whole unit. A new opener with full safety features, professionally installed, costs a fraction of what an emergency room visit costs. It costs even less than the thing I don't want to put into words.
What I'd Tell a Friend
If a friend with young kids asked me what to do about their garage door, I'd tell them three things.
Test the door yourself, every month. The four tests I described take ten minutes. Set a reminder on your phone for the first of the month. Do it while the kids watch, even. Make it routine. The day it matters is the day one of those tests catches something wrong before someone gets hurt.
Get a professional inspection at least once a year. More often if you have kids under twelve or pets. Our technicians use calibrated tools to test force settings, check sensor alignment precisely, evaluate spring and cable condition, and verify everything against the current UL 325 safety standard. A DIY monthly check catches the obvious stuff. A professional inspection catches the subtle stuff -- the spring that's lost 15 percent of its tension, the force setting that's drifted high, the cable that's fraying where you can't see it from the ground. Annual for most households. Every six months if you've got young kids or animals in the house.
If your opener is old enough that you're not sure if it has modern safety features, get it inspected now. Not next month. Not when it breaks. Now. I've walked into enough houses where the sensors were disconnected because someone found them "annoying," or where the opener was from 1988 and nobody had thought about it in decades. Those are the situations that keep me up at night. A twenty-year-old opener that "still works" doesn't work safely. It works dangerously. There's a difference, and the difference is your kid.
If anything about your door seems off -- it doesn't reverse during a test, it reverses randomly for no reason, it's making new noises, it's slower than usual, it shakes or vibrates in a way it didn't before -- stop using it and get it looked at. Unusual behavior is the door telling you something has changed. That something could be a sensor failing, a spring weakening, a cable fraying, a gear wearing out. Don't wait to see if it gets worse. By then, the failure may be complete and someone could be in the way when it happens.
And if you just bought a house anywhere in Central Oregon, add a garage door safety inspection to your move-in checklist. You don't know the history of that door. You don't know when it was last serviced. You don't know if the previous owner did something they shouldn't have to the safety systems. A baseline inspection when you move in tells you exactly what you're working with, identifies anything dangerous, and gives you a maintenance plan going forward. The number of disconnected sensors and ancient openers we find during new-homeowner inspections is not comforting.
Call us at 541-203-7676 to schedule a safety inspection. We serve Bend, Redmond, Sisters, Sunriver, La Pine, Prineville, Tumalo, Terrebonne, and all of Central Oregon. I'll give you a straight evaluation of your door's safety condition. No upselling, no scare tactics. Just an honest look at the machine your family walks under multiple times a day. If it needs work, I'll tell you what and why. If it's fine, I'll tell you that too.
More information on our safety services page and our maintenance page. If your door is doing anything strange right now, don't wait for the annual checkup. Call today.
Tyler Ottesen owns Brokentop Garage Doors with his wife Ashley. Licensed Oregon contractor, CCB #209697. He checks his own garage door on the first of every month and considers it the most important ten minutes he spends in his garage.