A garage door that will not open is one of the more disruptive things that can happen on a weekday morning. Some causes are trivial – a dead battery in the remote – and some are serious safety issues that mean you should not operate the door at all until it is repaired. This guide walks through the most common causes in order from simplest to check first.
Start With the Obvious
Before assuming a mechanical failure, check the basics:
- Remote battery: replace it. Cold weather and age drain batteries faster than most people expect. A remote that worked last week can go dead overnight in January.
- Manual lock: most garage doors have a slide lock or throw latch on the inside. If someone engaged it manually – or if the lock slipped on its own, which happens on older hardware – the opener will strain against a locked door and do nothing.
- Power to the opener: check that the opener is plugged in and that the outlet has power. A tripped circuit breaker or a cord pulled from the outlet is easy to miss.
- Disconnect cord: if the red emergency release cord was pulled – intentionally or by accident – the door is disconnected from the opener and will not respond until re-engaged.
Check the Photo-Eye Sensors
Garage door openers installed after 1993 have photo-eye sensors mounted near the floor on each side of the door. If the beam between them is blocked – by dirt on the lens, a cobweb, a misaligned bracket, or something sitting in the path – the opener will not close the door and may prevent it from opening as well.
Look for the indicator lights on both sensors. Both should glow steady. A blinking light means the beam is not aligned or something is interrupting it. Wipe the lenses with a dry cloth, clear the path, and check that both sensors point directly at each other. Most alignment issues can be resolved by loosening the mounting bracket and adjusting by hand.
Broken Spring – the Most Common Mechanical Cause
If the opener runs but the door barely lifts – or the opener sounds like it is straining heavily and the door moves only a few inches – a broken spring is the most likely cause. Torsion springs are mounted above the door on a horizontal shaft. A broken spring is visible as a gap in the coil.
Do not keep trying to operate a door with a broken spring. The opener is not designed to lift the full weight of the door without spring assistance, and forcing it risks burning out the motor and can cause the door to come down hard if the opener releases. Disengage the opener with the red cord and leave the door in place until the spring is replaced.
Broken or Slack Cable
If the door hangs at an angle – one side lower than the other – or if you can see a slack or looping cable along the side of the door, a cable has failed or come off its drum. A door with a failed cable should not be operated. The asymmetric load can cause the door to bind in the tracks or come down unevenly in a way that creates a safety hazard.
Track Obstruction or Damage
Check both vertical tracks for visible dents, bends, or debris. Even a small dent can prevent the rollers from moving freely. If the track is bent from an impact – a vehicle backing into the door frame is a common cause – the door will bind at that point on every cycle. Debris, hardened lubricant, and ice can also create enough resistance to prevent movement.
Do not attempt to force a door past a track obstruction. Straightening a bent track is a professional repair; attempting it with a hammer typically creates a worse problem.
Opener Failure
If the opener makes no sound at all when activated – no hum, no motor noise – the issue is likely in the opener itself: a failed capacitor, a burned motor, or a logic board problem. If the motor runs but the chain or belt does not move, the drive gear inside the opener may have stripped.
Openers older than 15 years that have reached this point are usually better replaced than repaired. The parts cost often approaches the cost of a new unit, and a new opener brings updated safety features and, in many cases, smartphone connectivity.
How to Manually Open the Door in an Emergency
If the opener has failed and you need to get the car out or in:
- Pull the red emergency release cord to disengage the door from the opener carriage
- Lift the door manually – it should feel balanced and move smoothly if the springs are intact
- If the door feels extremely heavy or will not lift at all, stop – a spring is likely broken and the door should not be operated manually without the spring system working
- Use the manual lock or a C-clamp on the track to secure the door open while you work in the garage
Emergency Garage Door Repair in Tulsa and OKC
Discount Garage Door provides same-day service throughout Tulsa and the Oklahoma City area with no after-hours surcharge. If your door will not open and the steps above have not resolved it, call us – we can typically have a technician out the same day.
Get a free quote online or call your nearest location:
- Tulsa: 918-234-3667
- Oklahoma City: 405-525-3667
- Edmond: 405-348-2000
- South OKC: 405-848-6700
Related: Garage Door Repair in Tulsa and OKC | Garage Door Spring Repair | Garage Door Cable Repair | The 5 Most Common Garage Door Repair Problems
