Stop and read this first. If you hear a loud bang, see a broken cable hanging, or notice the door looks crooked or off the tracks, do not try to operate it. That's a real failure — call a pro. The checks below are for an opener that just isn't responding or a door that won't move when the button is pressed. Anything that looks structurally damaged is a different problem.
1. Check the wall lock button
Most modern wall consoles (LiftMaster, Chamberlain, Genie) have a "Lock" or "Vacation" button that disables the remotes. Once toggled on, the wall button still works but every remote and keypad goes dead. It's by far the most common reason a homeowner thinks the opener is broken.
On the wall console, look for a small button labeled "Lock" or a padlock icon. Press it once. Try a remote. If the door responds, that was it.
How does it get toggled on? Usually by accident — kids leaning on the wall, a vacuum cleaner bumping it, a contractor working in the garage. We've answered "my opener died" service calls dozens of times that ended with us pressing one button.
2. Replace the remote battery
If the wall button works but the remotes don't, and the wall lock isn't on, the most likely answer is a dead battery in the remote. Garage door remotes typically use a CR2016, CR2032, or A23 battery — check the back of the remote.
Don't assume the battery is fine because the LED still lights up. The button LED takes very little current; the radio transmitter takes much more. A weak battery shows the LED but doesn't transmit a strong enough signal to reach the opener.
3. Check the safety sensors at the bottom of the tracks
Federal law requires every residential opener built since 1993 to have photo-eye safety sensors near the floor on each side of the door opening. If those sensors aren't aligned with each other — or if a leaf, spider web, or stored item is blocking the beam — the opener will refuse to close the door (and on some models, won't open it either).
What to look for:
- Both sensor LEDs should be lit. Typically one is green or amber (sender), the other red (receiver).
- If the receiver LED is off or blinking, they're misaligned. Gently nudge the brackets so the lenses point straight at each other.
- Wipe the lenses with a soft cloth — Houston dust and pollen build up on them.
- Make sure nothing is in the beam path: rakes, holiday decorations, the pool noodle that fell off the shelf.
This is the second most common cause of "the door won't move" calls.
4. Check the breaker and the outlet
Sounds obvious. It's still a top-five culprit. Every garage door opener is plugged into an outlet on the ceiling, and that outlet is on a breaker — usually shared with the garage's overhead lights. A storm, a power flicker, or someone running a high-draw appliance can trip it.
Check:
- Walk to the breaker panel. Look for any breaker that's tripped (sitting in the middle position rather than fully on or off). Reset by pushing fully off, then fully on.
- If the overhead garage light works, the breaker is fine — but the opener could still be unplugged. Look up at the ceiling outlet.
- Some outlets are GFCI-protected. If so, the GFCI is usually on a different outlet in the garage. Press its "Reset" button.
5. Pull the manual release and try lifting the door by hand
This isolates whether the problem is the opener or the door itself. Pull the red emergency release cord (hangs from the trolley along the opener rail), which disconnects the opener from the door.
Then try to lift the door manually:
- Door lifts smoothly with one hand and stays at waist height: the door is fine. The problem is the opener — go to step 6.
- Door is heavy, hard to lift, or falls when you let go: spring or counterbalance issue. Stop, let the door rest closed, and call a pro. See 5 signs your spring is about to break for context.
- Door binds, sticks, or makes grinding noises while lifting: off-track or roller problem. Don't force it. Call a pro.
6. Listen to what the opener actually does
If the door is fine but the opener isn't moving it, what you hear when you press the button tells you the failure mode:
- Total silence, no clicks, no LED on the opener: no power. Back to step 4.
- One click, then nothing: usually a blown capacitor on the motor. Repair, not DIY.
- Motor hums but trolley doesn't move: stripped trolley gear (chain drive) or broken belt segment (belt drive). Repair.
- Motor runs the full cycle but the door doesn't move: the trolley is disengaged from the door. Re-engage by sliding the trolley arm and pulling the release cord toward the motor while running the opener until it clicks back in.
- Door starts up, reverses immediately: safety sensor problem (back to step 3) or the opener's force limit needs adjustment.
7. Re-program the remote
Rare but real: a power surge can wipe the opener's remote pairing memory. Symptoms: wall button works perfectly, no remote does anything, batteries are good, lock isn't on. To re-pair:
- Find the "Learn" button on the back of the opener motor (small, often colored — purple, yellow, green, or red depending on brand and year).
- Press and release it. The opener's LED will glow steady for about 30 seconds.
- While the LED is on, press and hold the remote button you want to use until the opener lights flash or the door clicks.
- Repeat for each remote.
Specific button colors and timing vary by brand and year — check the sticker on the back of the motor for your model.
When to stop and call a pro
Call us if:
- You hear a loud bang and the door is now stuck or hanging crooked. Likely a broken spring or cable.
- The door is off the tracks or rollers are visibly out of place.
- The opener motor smells burnt or the LED on the back has been blinking for a while.
- The door is too heavy to lift manually after you've pulled the release.
- You've gone through this list and the symptom doesn't match anything.
Need a working crew on it today? See our garage door repair page for what we charge and our process, or call (713) 823-0680. We cover Katy, Cypress, Tomball, Spring, The Woodlands, and the greater Houston area.