Why Won't My Garage Door Open? 7 Common Causes & When You Need Professional Repair

A garage door that won't open is one of the most common calls we get, and the cause can range from a simple fix to a genuine safety hazard. If you heard a loud bang before it stopped working, a broken spring is the most likely culprit and the door shouldn't be forced open. If there was no bang, the cause could be the opener, a sensor, a cable, the track, or something simpler like a remote or power issue. Below, we walk through the seven most common causes in order of how frequently — and how seriously — they show up, so you know what you're dealing with and when it's time to call a professional for garage door repair in Covington, LA and the Northshore.

Broken Garage Door Spring

The most common reason a garage door won't open is a broken spring. Springs counterbalance the door's full weight — often 300 to 400 pounds — so the opener or a person can lift it easily. When a spring snaps, that counterbalance disappears and the door becomes too heavy to lift.

The clearest sign is a loud bang right before the problem started. Other signs include the opener motor running while the door doesn't lift, the door feeling unusually heavy, visible separation in the coil, and crooked or uneven movement. Never attempt to open a door with a broken spring, and never attempt to repair, wind, or replace a spring yourself — springs are under hundreds of pounds of stored tension, and improper handling can cause severe injury. Our garage door spring replacement service covers diagnosis and safe replacement, and our article on recognizing a broken garage door spring covers these signs in more depth, along with our guide to spring repair vs. replacement.

Garage Door Opener Problem

If the opener motor doesn't run at all, or runs but the door doesn't respond correctly, the opener itself may be the issue — though it's worth ruling out a spring problem first, since a failed spring can make the opener strain or reverse in ways that look like an opener malfunction. Signs pointing more specifically to the opener include unusual motor noises, inconsistent door movement, unexpected reversal without an obstruction, and a system that's over 10 to 15 years old and lacks modern safety features. A garage door opener technician can determine whether the issue is a settings problem, a worn component, or a sign the opener needs replacement.

Photo-Eye / Safety Sensor Problem

If your door closes partway and reverses, or won't close at all, a misaligned or obstructed safety sensor is a common cause. The photo-eye sensors near the bottom of each track must have a clear, aligned line of sight to each other; if the beam is blocked or the sensors have shifted, the door's safety system prevents it from closing. Homeowners can safely check for obstructions in the beam path, whether the LED lights on each sensor glow steady rather than blinking, and whether the sensors have been visibly bumped out of alignment. Our garage door sensor troubleshooting guide walks through these checks in detail.

Broken or Damaged Garage Door Cable

Cables work alongside the springs to guide the door's movement along the tracks, and a frayed or snapped cable can cause the door to hang crooked, drop suddenly on one side, or stop moving partway through its cycle. A visibly frayed, loose, or snapped cable is a safety hazard — do not attempt to open, close, or manually force the door, and do not attempt to repair or replace the cable yourself, since cables are also under significant tension as part of the counterbalance system. This is a job for a trained garage door repair technician.

Track or Roller Problem

A door that squeaks, grinds, sticks, or moves unevenly along its tracks often points to worn rollers, dry hinges, or a track that's become misaligned or bent. These issues can eventually prevent the door from opening or closing smoothly, and grinding in particular can indicate the door is fighting its way through a misaligned track rather than moving freely. Our article on why you should never ignore a squeaky or sticking garage door covers these warning signs in more detail. Routine garage door maintenance — lubrication and track inspection — helps catch this wear before it becomes a full stoppage.

Remote, Keypad, or Power Problem

Sometimes the simplest explanations are the right ones: dead remote batteries, a keypad that's lost its programming, a tripped circuit breaker, or an unplugged opener unit. These are safe for homeowners to check themselves — try a wall-mounted control button if you have one, check the breaker panel, and confirm the opener unit has power before assuming a bigger mechanical problem. If the remote or keypad simply needs reprogramming rather than replacement, our keypad and remote programming service handles that directly, typically in 15 to 30 minutes.

Door Obstruction, Imbalance, or Panel Damage

Occasionally the cause is simpler: an object blocking the track, debris in the door's path, or a door that's come off-balance and is binding as it moves. Warped or dented panels can also throw a door out of alignment enough to affect how smoothly it opens. If a panel has visible damage affecting the door's structural integrity, garage door panel replacement can often resolve it without replacing the entire door.

What Homeowners Can Safely Check

Before calling a technician, it's reasonable to check for obvious obstructions in the door's path, confirm the opener has power and the breaker hasn't tripped, check remote and keypad batteries, and visually inspect the photo-eye sensors for dirt, misalignment, or blinking lights. These checks are safe because they don't involve touching springs, cables, or any component under mechanical tension.

What Homeowners Should NOT Attempt

Never attempt to inspect, adjust, wind, unwind, remove, or replace a garage door spring or cable yourself. These components are under hundreds of pounds of stored tension, and improper handling can cause severe injury or death. This isn't a job for a home toolkit — it requires specialized tools and training, which is why it should always go to a trained technician.

When Should You Stop Operating the Garage Door?

Stop using the door immediately if you hear a loud bang, notice the door won't lift or only lifts partially, see a visibly frayed or separated cable or spring, or notice the door moving crooked or dropping unevenly. Continuing to operate a door in any of these conditions risks further damage to the opener and track hardware, and in the case of springs or cables, a real safety hazard.

When Is a Broken Spring Likely the Cause?

A broken spring is the likely cause whenever the opener runs normally but the door doesn't lift, the door feels unusually heavy, you heard a loud bang beforehand, or you can see a gap in the spring coil above the door. If any of these match what you're seeing, treat it as a spring issue and avoid using the door until a technician inspects it.

When Is Professional Garage Door Repair Appropriate?

Call a professional as soon as you notice any of the signs above rather than waiting to see if the problem resolves on its own — a stuck or malfunctioning door rarely improves without intervention, and continuing to force it increases the risk of more expensive damage or injury. If your own safe checks (power, batteries, obvious obstructions) don't resolve the issue, it's time for a diagnostic visit.

Garage Door Repair in Covington, LA

Certified Garage Door provides same-day and next-day garage door repair throughout Covington, covering everything from spring and cable issues to openers, sensors, and tracks. Our technicians are trained on all major brands, including LiftMaster, Clopay, and Amarr. See our Covington garage door services page for more on how we serve local homeowners.

Garage Door Repair Across the Northshore

Beyond Covington, Certified Garage Door provides the same diagnostic and repair service throughout the Northshore, including Mandeville, Madisonville, Hammond, Ponchatoula, and Slidell. Wherever you're located in St. Tammany Parish, our technicians bring the same diagnostic approach to every call.

A garage door that won't open is inconvenient at best and a genuine safety issue at worst, especially when a spring or cable is involved. Certified Garage Door has helped Covington and Northshore homeowners diagnose and resolve these issues for years, and our customer reviews reflect that experience on every call.

Frequently Asked Questions

Why does my garage door opener run but the door doesn't move?

This often points to a broken spring — the opener isn't strong enough to lift the door's full weight without the spring's counterbalance — but it can also indicate a disconnected drive mechanism or opener problem.

Is it safe to open my garage door manually if it won't open with the opener?

Only if you're certain the spring and cables are intact. If you heard a loud bang or the door feels unusually heavy, don't attempt to open it manually — treat it as a possible spring failure.

How do I know if it's the sensor and not something more serious?

If the door opens normally but reverses or won't close, and you can see the sensor LEDs blinking or misaligned, it's likely a sensor issue rather than a spring or cable problem.

Why won't my garage door open?

The most common cause is a broken spring, but opener problems, misaligned safety sensors, damaged cables, track or roller wear, dead remote batteries, and obstructions can all prevent a door from opening.

Why won't my garage door open even though the motor runs?

This is a strong sign of a broken spring — the opener runs, but without the spring's counterbalance it can't lift the door's full weight.

How do I know if my garage door spring broke?

Listen for a loud bang, and check whether the door feels unusually heavy, won't lift, or shows a visible gap in the spring coil.

Why did I hear a loud bang and now my garage door won't open?

A loud bang is almost always a spring snapping under tension. Avoid operating the door and contact a technician for spring replacement.

Why is my garage door stuck closed?

This can result from a broken spring, a disconnected opener, a misaligned track, or a safety sensor preventing operation. A technician can pinpoint the exact cause.

Why is my garage door opening unevenly?

Uneven movement often points to a track or roller problem, or in some cases a spring that's beginning to fail.

Why won't my garage door close?

A blocked or misaligned photo-eye sensor is the most common cause of a door that won't close, though track or roller issues can also be responsible.

Is my garage door opener broken, or is it the spring?

If the motor runs normally but the door doesn't lift, suspect the spring first — a failed spring is more common than an opener failure in this scenario.

Can I manually open a garage door with a broken spring?

No. Without the spring's counterbalance, the door's full weight is unsupported and it can fall rapidly and without warning.

How do I know if my garage door cable is broken?

Look for a door that hangs crooked, drops suddenly on one side, or a visibly frayed or snapped cable near the bottom corners of the door.

How do I know if my garage door sensor is bad?

Signs include the door reversing while closing, blinking LED lights on the sensor housing, or the door only working with the wall button held down.

Who repairs garage doors in Covington, LA?

Certified Garage Door provides same-day and next-day garage door repair throughout Covington and the Northshore.

When should I call a garage door technician?

As soon as you notice a loud bang, the door won't lift, a frayed cable, or persistent sensor or opener issues that basic checks don't resolve.

Door Won't Open? We Can Diagnose It Today.

Whether it's a broken spring, a sensor issue, or something else entirely, Certified Garage Door can identify the cause and get your door working safely again. Request your free estimate today or call (985) 234-9130 to schedule a technician in Covington or anywhere across the Northshore.