Garage door remote or keypad won't work

Q: Garage door remote or keypad won't work

In Canada, when a garage door remote or keypad stops working but the wall button inside still opens the door, the most common cause to rule out is a dead battery in the remote or keypad — a cheap coin cell you can swap in minutes. Next, the remote may have lost its programming and just needs re-pairing with the opener's "Learn" button. In cold winters an outdoor keypad can go sluggish or dead, and worn buttons or a damaged antenna wire can shorten range. If no remote works even with fresh batteries, the opener's receiver or logic board may have failed — that's a repair to route to a garage-door pro. A working wall button points at the remote or receiver, not the door.

Annoying, but rarely serious: if the wall button still opens the door, the opener itself is fine and you're almost always looking at a dead battery or a remote that just needs re-pairing.

tuneWhat are you noticing?

Select anything that matches and the checklist below reorders to fit. Not sure? Skip it.

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Start here

In Canada, start with the battery — it's the most common cause to rule out. Pop the remote open (usually a coin cell like a CR2032, or an A23 in older visor remotes) and swap in a fresh one. Under $10 at any hardware store, and it fixes this more often than anything else. Confirm the wall button still opens the door so you know the opener itself is fine.

Ranked from real-world failure data. The order updates as you select what you’re noticing above.

Likely causes, in the order to check them

Showing the typical order

Beginner-friendly Doable, with care Safety-critical Call a pro

handymanHow to fix it

Open the remote or keypad, note the battery type printed inside, and slide in a fresh matching cell the same way the old one sat.

Slide or pry open the remote's case (visor remotes often have a small screw or a clip; keypads have a battery door on the back).
Note the battery marking — commonly a CR2032 coin cell, or a 12 V A23 in older visor remotes — and the way it faces (+ side up).
Drop in a fresh matching battery the same orientation, close it up, and test from the driveway. If it works, you're done; if not, move on to re-pairing.

schedule5 min savings$4–12

Garage remote / keypad batteryMatch the marking inside the case — usually a CR2032 coin cell or a 12 V A23; buy the exact type printed on the old one

gavel Check your province first AB: homeowner may do this · BC: homeowner may do this · ON: homeowner may do this · PE: homeowner may do this · QC: homeowner may do this
Replacing a remote/keypad battery and re-pairing a remote are routine homeowner maintenance in every province. Note: rewiring or replacing a hard-wired opener is licensed electrical work and routes to a pro.

handymanHow to fix it

Press the opener's Learn button, then press the remote button within about 30 seconds so the opener re-learns it. Free, and it revives a remote that forgot the opener.

On the opener head, find the "Learn" or "Smart" button — usually a coloured square near where the antenna wire attaches. Your opener's manual shows its exact spot and colour.
Press and release the Learn button; a small indicator light comes on for roughly 30 seconds.
Within that window, press the button on your remote once (twice on some models). The opener light should blink or click to confirm it learned the remote — then test the door.
Repeat for each remote and the keypad. If nothing pairs and the wall button still works, the receiver itself may be at fault — route to a pro.

schedule10 min savingsusually free

visibilityHow to check range and the antenna

Stand right under the opener and press the remote. If it works up close but not from the driveway, this is a range problem, not a dead remote.
Look up at the opener head and find the thin antenna wire. It should hang straight down and be intact — if it's coiled up, tucked into the housing, or visibly cut, gently straighten or free it and test again.
Think about what changed near the opener: a new LED or CFL bulb in the opener socket is a common signal-jammer. Try a plain incandescent or a "garage-door-rated" LED and re-test the range.

buildNo tools schedule10 min

verifiedWhy this one goes to a pro

The opener head runs on 120 V household power, and its logic board and receiver aren't a plug-and-play swap on every model. Replacing the board, hard-wiring a new opener, or touching the power feed is work for a garage-door technician or, for the wiring, a licensed electrician — not a homeowner task. The good news: a working wall button means the opener still runs, so a tech can often fit a plug-in receiver quickly instead of replacing the whole unit. Unplug the opener before anyone opens the head.

Your notes travel with the request — what you saw, what you ruled out, when it started — so the pro arrives with a head start instead of a mystery.

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Why the list is in this order

We don’t sort by likelihood alone. We sort the way a good, honest tradesperson thinks: rule out the free, safe, common causes first. That’s why the cheap checks outrank the expensive repairs — and why anything dangerous gets a hard stop instead of a pep talk. The order exists to save you money, not to sell you anything.