Troubleshooting· June 3, 2026 · 7 min read · By the Katy Garage Door team

Garage Door Won't Open? 7 Common Causes — and What's Safe to Fix Yourself

Roughly half the "my door is dead" calls we get in Katy end up being something the homeowner could have fixed in five minutes — and we'd rather tell you that here than charge you a visit to press a button. Run this list top to bottom. The first five are safe. The last two are not.

Homeowner looking at a garage door that will not open

1. The opener is in lock mode Safe to DIY

Most wall consoles have a "lock" or "vacation" button that disables every remote — and it gets bumped more often than you'd think. If the wall button opens the door but no remote does, hold the lock button for a few seconds to toggle it off. That's it. No charge, no visit.

2. Dead remote batteries or lost pairing Safe to DIY

Remotes run on coin cells that last a couple of years. Swap the battery first. If it still won't respond, re-pair it: press the "learn" button on the opener's back panel, then a button on the remote within 30 seconds. Keypads pair the same way. Houston-area storms can also wipe pairings — a surge is often why "everything stopped at once."

3. Blocked or misaligned safety sensors Safe to DIY

If the door opens fine but won't close — or closes a few inches then reverses while the opener light flashes — it's almost always the photo-eyes: the two little sensors near the floor on each side of the opening. A trash can, a cobweb, or a knocked bracket breaks the invisible beam.

The fix: clear anything in the beam's path, wipe both lenses, and gently bend the brackets until both indicator LEDs glow steady (usually one green, one amber). Steady lights = aligned.

4. The trolley is disconnected Safe to DIY

That red cord hanging from the opener rail is the manual release. If someone pulled it (moving day, power outage), the motor runs but the door doesn't move. With the door fully closed, pull the cord toward the door to re-engage, then run the opener — the trolley clicks back in as it passes.

5. No power to the opener Safe to DIY

Openers plug into ceiling outlets that often share a GFCI circuit with the garage fridge. If the opener is completely dark, test the outlet with a phone charger and press "reset" on any GFCI outlets in the garage and nearby bathrooms. After an outage, some smart openers also need a minute to reboot before they'll take commands.

From here down, stop and call. The next two involve parts under hundreds of pounds of tension. This is where DIY turns into ER visits.

6. A broken spring Call a pro

Heard a bang recently? Door feels like lead when you lift it manually? Visible gap in the coil above the door? That's a snapped spring — the opener alone can't (and shouldn't) lift the door's full weight. Stop cycling the opener and read our guide to the warning signs of a failing spring, then book a spring replacement. Same-day in most of Katy.

7. Snapped cables or an off-track door Call a pro

If the door hangs crooked, a cable droops from a drum, or rollers have left the track, the door can bind — or fall. Don't operate it, keep people and cars out of the opening, and treat it as urgent. This is exactly what our 24/7 emergency service exists for; the full repair rundown is on our garage door repair page.

Still stuck?

If you've run all seven and the door still won't move, something less common is going on — stripped opener gears, a failed logic board, travel limits that drifted. Send us what you observed (every step you tried helps) and we'll come diagnose it properly with a written quote before any work.

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