What’s the cheapest reason a garage door opener stops working?
A dead remote battery, and it’s free to test: walk in and press the wall button. Wall works, remote doesn’t? You just diagnosed it. The coin cell inside most remotes lasts two to three years, costs a few dollars at any Sand Springs pharmacy checkout, and swaps with one small screwdriver.
Everything below assumes you tried the wall button first. It splits the whole problem in half and costs nothing.
Rung 1: Free fixes
- Power. The opener’s ceiling outlet often rides a GFCI shared with outdoor outlets. Press reset on any tripped GFCI in the garage or patio circuit, then check the breaker panel.
- Lock button. Holding the lock key on the wall console kills all remotes on purpose. Hold it again to unlock. Households with kids rediscover this one regularly.
- Antenna. That short wire hanging from the motor case is the radio. If it’s tucked up out of sight, remote range collapses to a car-length.
Rung 2: Under $20
- Remote and keypad batteries, as above.
- Silicone garage-door lube on rollers and hinges. A dry, screeching door drags hard enough that some openers give up mid-lift, especially on cold mornings.
Rung 3: The under-$100 conversation
Re-pairing remotes and keypads after a power blink scrambles their memory is a quick visit if you can’t find the model’s learn-button sequence. Sensor realignment lives here too. If you want to try either yourself first, nobody here minds; the sequence is in the manual under the model number on the motor case.
Rung 4: Real parts
- Stripped drive gear. The hum-without-movement failure. The main gear in chain and screw units is nylon by design, and it wears through on a schedule of years. The swap is a standard visit at the low end of the repair range on the opener repair page.
- Logic board. After Green Country lightning weekends, boards die in batches. Symptoms: totally dead with a live outlet, or possessed behavior like the light strobing and random cycles.
Rung 5: When the ladder ends at replacement
Fifteen years old or more with a dead board, or any opener made before 1993, which predates the required safety sensors: stop climbing and replace. A new belt-drive unit is quieter than what it replaces by a margin that surprises people, and battery-backup models keep working through the outages our storm season hands out. What that costs installed is on the pricing page.
One warning rung, off the ladder
If the opener hums and the door also feels like dead weight when you lift it by hand, the problem was never the opener. That’s a snapped torsion spring wearing an opener costume, and the spring carries enough stored force to injure you. Stop testing, leave the door down, and read the spring repair page instead.