Garage Door Opener Not Working? Decode the Symptom.
Openers don't just quit. They quit in a specific way: dead silent, clicking once, humming without moving, or working every third Tuesday. The symptom is the diagnosis, and once you match yours to the list below, you'll know in two minutes whether it's a battery, a button, or a service call. Mo here. Let's listen to your opener.
“If the opener strains, or the door feels heavy when you lift it by hand, that's not an opener problem. That's a spring problem wearing an opener costume. Stop blaming the motor and look at the coil above the door.”. Mo
Direct answer
A garage door opener that's not working is telling you exactly what's wrong.
Match the symptom. Totally dead means power, GFCI, or breaker. Remote dead but wall button fine means battery or lock mode. A single click then nothing means the starting capacitor. A hum with no movement means a stripped drive gear or a broken spring. Running motor with a still door means a pulled release cord. Opens but won't close with a flashing light means safety sensors. Works some days and not others means a dying logic board or LED bulb interference. Half of these are two-minute homeowner fixes. The rest are honest repairs. The eight symptoms below tell you which is which.
Find the symptom. Follow the fix.
This isn't a checklist to run top to bottom. It's a lineup. Press the button, watch and listen to what the opener does, then jump straight to the symptom that matches.
Totally dead, no lights.
No light, no hum, no click, nothing. That's a power problem, not an opener problem, and it's the best news on this page. Check the ceiling outlet first: plug a lamp into it. Dead outlet? Garage outlets in Georgia homes usually ride a GFCI circuit, so find the GFCI (it may be across the garage, in a bathroom, or outside) and hit reset. Then check the breaker panel. Storm season fills my schedule with "dead" openers that were one tripped GFCI.
Remote dead, wall button works.
If the wall button runs the door and the clicker doesn't, the opener is fine. Swap the remote's coin-cell battery first; short range before it died completely was your warning. Still nothing? Check the wall console for a lock button. Kids press it, elbows press it, and when it's on, every remote and keypad goes dead on purpose. Hold it a few seconds to unlock. Last resort, reprogram the remote to the opener. The steps are in the manual, or call and we'll talk you through it.
Wall button dead too, but the light is on.
Power's there, brains aren't listening. The wall button is just a switch on two thin wires, and those wires get nicked by nails, chewed by mice, and loosened by time. Check the connections at the button and at the back of the motor head. Buttons also physically stick and die. If the wiring and button check out and the opener still ignores you, the logic board is the likely culprit, and that's a bench diagnosis for a tech.
Clicks once, then nothing.
That single click is the relay firing and the motor asking for its starting jolt. When nothing follows, the starting capacitor is almost always dead. Georgia heat is murder on capacitors; a garage ceiling in July is an oven, and capacitors are the first component to cook. The good news: on a unit that isn't ancient, a capacitor is a quick, inexpensive swap for a tech. Don't open the motor head yourself. Capacitors hold a charge even unplugged.
Hums but nothing moves.
The motor is running and something downstream let go. Check the spring first: look above the door for a clean gap in the torsion coil. A broken spring makes the door too heavy, and the opener hums, strains, and gives up. If the spring is whole, the classic cause is a stripped main drive gear, the white plastic gear inside older chain-drive units. You'll sometimes find white shavings on the motor housing like plastic snow. Springs are spring repair. Gears are a gear kit, and that's opener surgery.
Runs but the door doesn't move.
Motor sounds normal, trolley slides down the rail, door sits there. Somebody pulled the red release cord, usually during a power outage, and the trolley is disengaged from the door. With the door fully DOWN, pull the cord toward the door to reset the latch, then run the opener until the trolley clicks back in. If the door is stuck OPEN, leave that cord alone. The door can free-fall. That one's a phone call.
Opens but won't close, light flashing.
That flashing light is the opener telling on its safety sensors. The two little eyes near the floor are blocked, knocked out of line, or unplugged, and the opener refuses to close blind. That's a feature, not a failure. Clear the beam, aim the eyes at each other until both lights glow steady, and check the wires. I wrote a whole walkthrough on this one: garage door won't close. Ninety seconds of sensor fiddling fixes most of them.
Works some days, not others.
The most annoying symptom on the list, and usually one of two culprits. A dying logic board fails intermittently before it fails completely, especially in summer heat. Or something in the garage is shouting over your remote's frequency, and the number one offender is real: certain LED bulbs, including the one screwed into the opener itself, emit interference that jams remotes. Swap the opener bulb for one rated for garage door openers and see if the gremlins leave. If they stay, the board is dying. Replace it before it strands you.
The phone-call diagnosis.
A homeowner calls a big outfit, describes a door that won't budge, and before anyone has seen the unit, the voice on the phone declares “sounds like the motor's shot” and starts quoting whole new openers. Nobody looked. Nobody listened to it click. I've followed behind those calls and found sensors knocked half an inch out of line, a 30-second alignment, and capacitors that swap out in minutes. You cannot diagnose a motor through a telephone.
Repair it or replace it?
The honest math on old openers, no sales pitch.
Here's the line I use in driveways. If the failed part is a gear kit, a capacitor, a sensor, or a trolley, and the unit is on the younger side, repair it. Those are routine fixes and the opener has years left. But if the motor or the logic board is gone on a unit past 12 to 15 years, resuscitating it usually isn't the smart play. A new opener brings battery backup for outages, modern safety sensors, and a motor with a full life ahead of it, and you skip the next three service calls on the old one. Belt versus chain? Belt drives run quieter, chain drives are workhorses; if a bedroom sits over the garage, get the belt. Our tech gives you both numbers in writing and lets the math talk. And if the opener died at midnight with your car behind it, the emergency line answers around the clock at (770) 588-1037.
Why is my garage door opener clicking but not opening?
How long do garage door openers last?
Is it worth repairing an old garage door opener?
Why did my garage door opener stop working after a storm?
Why does my remote work but my keypad doesn't?
Opener still dead? Bring in the opener guy.
You matched the symptom. It's not the battery, the GFCI is reset, and the thing still clicks and sulks. That's exactly what we're for. A real person is on the line right now, and before-11am calls usually get a same-day truck.
"Mo Better Garage, we make it waaaay 'mo better."
