Garage door opener not working: what to check before you call anyone
Opener complaints have a troubleshooting order, and it starts with the cheapest suspects. Work down this list before you spend a dime - and stop at step four if the symptoms match, because that one only looks like an opener problem.
1. The remote works sometimes, the wall button always
That gap between remote and wall button is the whole diagnosis: the motor and drive are fine, and the radio side is struggling. In order of likelihood -
- Remote battery. A CR2032 coin cell costs two dollars at any Kokomo pharmacy. Weak batteries fail intermittently and from range first, which is why the remote “works in the driveway but not from the street.”
- The antenna wire. A thin wire should hang down from the motor head. If it’s clipped up over the rail from some long-ago ceiling project, radio range collapses. Let it hang.
- Reprogramming. After a power blink, some units drop their remotes. Hold the LEARN button on the motor head, then press the remote - most brands re-pair in under thirty seconds.
If none of that lands, the receiver board itself is going deaf - that’s a repair visit, and an honest tech will quote the board against the age of the unit before replacing anything.
2. Nothing responds at all
Silence from both the remote and the wall button means power. Openers in Indiana garages almost always share a circuit with a GFCI outlet - find the outlet with the little reset button (often by the service door) and press it. Storm season trips them constantly. Then check the opener’s own plug; ceiling outlets get bumped by ladders and truck toppers.
Power’s on but the unit is dark and dead? Logic board. Now it’s a repair-or-replace conversation, and the age of the unit decides it - we lay out that math on the opener page.
3. It runs, but grinds - then the door stops moving
A chain-drive opener that suddenly runs loud, grinds, and spins without moving the door has stripped its main drive gear - a nylon part designed to be the fuse. A gear-and-sprocket kit is a routine bench repair on a unit that’s otherwise healthy.
But here’s the part most people miss: gears strip for a reason, and the reason is usually a door that got heavy. Which brings us to -
4. The fault that isn’t the opener: a broken spring
If the motor hums and strains but the door won’t lift - or the door got “heavy” before the opener started acting up - stop pressing the button. Look at the coil spring on the shaft above the door. A clean gap in the coil means the spring is broken, the door now weighs a couple hundred dead pounds, and no residential opener on earth can lift it. Every button press from here strips gears and bends the top panel.
This is the most common misdiagnosis in the trade, and the most profitable one for a dishonest company: sell a new opener, leave the broken spring, and the “new” opener dies too. If the door is heavy, it’s a spring job first, every time.
5. The door reverses at the floor
Photo-eye sensors out of alignment (nudge them until both LEDs are solid), a beam blocked by garage clutter, or - if it reverses only in bright afternoon sun - low sun blinding one sensor, which a cardboard sun shade fixes. If the eyes check out and it still reverses, the close-force or travel limit needs adjusting, which is a service call but a quick one.
The honest bottom line
Batteries, GFCIs, antennas, and sensor nudges are yours - free, safe, five minutes. Boards, gears, and anything involving the spring are ours. When it crosses that line, the estimate comes in writing before the work starts, same as every job we run in Howard County.