The safety sensors are the first thing to check, because they cause most doors that open but will not close. Two small units sit near the floor on either side of the opening. The opener will not close unless they can see each other. We have run our overhead door company from the same Edmond, Oklahoma location since 1983. Sensor faults are still the most common no-close call we take. Most of them get solved in under ten minutes, with no technician and no parts.
How to tell whether the sensors are the problem
The opener usually tells you before you have looked at anything. Most models blink the overhead light a set number of times when the beam is broken. The indicator on one of the two sensor units also goes dark or starts flickering.
Look at both units. One carries a steady indicator light, and the other carries a light that drops out when something crosses the beam. A light that is off, flickering, or orange where it should be green points at the sensors rather than the door.
Work through these five in order before touching anything mechanical.
Clear the path. A trash bin, a bike wheel, a coiled hose, or a drift of leaves is enough to break the beam. Check the full width of the opening at floor level.
Wipe both lenses. Dust, cobwebs, and road grime scatter the infrared beam. A soft, dry cloth is all it takes.
Check the brackets. Sensors get knocked out of line by a bumper, a ladder or a kid's bike. Both units should sit at the same height and face each other squarely.
Look for sun glare. Direct afternoon sun on the receiving sensor washes out the beam. A door that only fails at one time of day is usually this.
Inspect the wiring. A staple driven through the sensor wire or a pinched run behind a bracket breaks the circuit while everything still looks fine.
A detailed walkthrough of garage door sensor problems covers the realignment step. That includes using a level to set both brackets at a matching height.
What it means when the door reverses just before it touches the ground
Sensors are not always the cause here. A door that travels most of the way down and then reverses is usually reading its close limit incorrectly. That holds when the sensors are clean, and the path is clear.
The close limit setting tells the opener where the floor is. Set too low, the door meets the ground before the opener expects it, reads that resistance as an obstruction, and reverses. Worn weather seals and settled concrete both shift that point over time. That is why a door that behaved for years can suddenly start doing it.
Most openers carry a close limit adjustment on the motor housing, and the owner's manual gives the procedure for your model. Small adjustments are the rule. Turning the screw a quarter turn at a time and testing between each change keeps you from overshooting into a door that slams.
Debris in the tracks produces a different symptom. Dirt, small stones, and grit make the door stick or judder partway down rather than reverse cleanly. Wiping the tracks out with a damp cloth clears most of it.
When the door will not respond at all
A door that ignores both the remote and the wall button has a different problem from one that starts closing and stops. Power is the place to start.
Confirm the opener is plugged in, then test the outlet with something else. Look at the breaker panel for a tripped breaker. Garage circuits often share with exterior outlets, so a trip can take the opener down without affecting anything inside the house.
If the wall button works and the remote does not, the remote is the problem rather than the door. Weak batteries cause intermittent operation long before they fail outright, and reprogramming the remote to the opener resolves most of what is left.
Could a broken spring or cable be stopping it?
Springs do most of the lifting work, and a failed one changes how the door behaves in both directions. A door that will not close is a less common spring symptom than one that will not open. It happens often enough to check.
From a safe distance, look for a visible gap in the torsion spring coil above the door. A cable that has gone slack or jumped off its drum counts too. So does a door sitting crooked, with one side lower than the other. A loud bang from the garage earlier in the day is often the spring itself letting go.
Stop there. Torsion springs hold enormous tension, and a spring or cable under load can cause serious injury when handled without the right tools and training. Do not operate the door and do not attempt an adjustment. Catching hidden garage door spring issues early is worth the attention. A spring close to failing gives warning signs weeks ahead of the break.
When the problem traces back to a spring, cable, or drum, call us. We will send a technician out with the parts already on the truck. Most of these jobs finish in a single visit.
Why the opener itself might be the failing part
An opener ten years old or more develops faults that look like door problems. Stripped drive gears, a failing logic board, and worn limit switches all produce inconsistent closing.
Inconsistency is the tell. A door that closes sometimes, closes slowly, or grinds while barely moving points to the opener rather than the door. A motor that runs while the door stays put is a stripped gear almost every time.
We repair openers before recommending replacement whenever the repair makes sense. As the only LiftMaster Factory Authorized ProVantage Dealer in Oklahoma, we service LiftMaster units with factory-certified training behind the work. We also handle Chamberlain, Genie, Craftsman, and most other major brands.
When to stop troubleshooting and call a technician
Some of this is homeowner work and some of it is not. Clearing the path, wiping lenses, checking the breaker, and swapping remote batteries are all safe to do yourself.
Springs, cables, and drums are not, because they hold tension even while the door sits still. Track and roller work falls in between. A bent track can be straightened, but a door that has come off its track can drop. Anything electrical inside the opener housing belongs to a technician.
Our garage door repair and maintenance work carries a 30-day warranty on labor. Parts carry a limited lifetime warranty on springs, rollers, hinges, cables, and drums. Technicians carry the common parts on the truck, so most no-call issues get diagnosed and fixed on the same visit.
Frequently asked questions
The questions below come up most often on no-close calls.
Why does my garage door close a few inches and then go back up?
That pattern points to the safety sensors or the close limit setting. If the sensor lights are steady and the path is clear, the close limit is likely set too low. The opener then reads floor contact as an obstruction. Adjust the limit in small increments, testing the door between each change.
Can I close my garage door manually if the opener will not do it?
Yes. Pull the red emergency release cord to disengage the door from the opener, then lower the door by hand. Do this only when the door is balanced, and the springs are intact. A door with a broken spring can drop with enough force to cause serious injury.
Why does my garage door only fail to close in the afternoon?
Direct sunlight striking the receiving sensor washes out the infrared beam, so the opener behaves as though something sits in the path. Shading the sensor with a small hood or shifting it slightly usually resolves it. A door that fails at a consistent time of day is a strong clue.
Do dirty sensor lenses really stop a garage door from closing?
They do. The sensors rely on a narrow infrared beam. A film of dust, a cobweb, or a spot of grime scatters enough of it to break the connection. Wiping both lenses with a soft, dry cloth is one of the most common fixes we perform on no-close calls.
How long does a sensor repair usually take?
Realignment and cleaning take minutes. Replacing a damaged sensor or repairing a broken wire run typically takes under an hour. Our technicians carry common sensor parts on the truck. Repair labor carries a 30-day warranty, with a limited lifetime warranty on covered parts.
Get a technician out in Edmond
If the sensors are clean, the path is clear, and the door still will not close, stop troubleshooting. The next step is a diagnosis. Call (405) 341-9601 to get a technician scheduled, and same-day service is available for urgent repairs in most cases. Our office and 15,000 sq. ft. showroom are located at 14000 North Santa Fe Ave., Edmond, OK 73013, and are open Monday through Friday from 7:30 am to 5 pm.
