Work through it in order

Each check takes a minute or two. Go in order, since the earlier steps catch the large majority of dead-opener cases.

1

Confirm the opener actually has power

Check that the unit is plugged in, test the outlet with another device such as a phone charger, and look at the breaker panel for the circuit that feeds the garage. A tripped breaker is one of the more common reasons an opener goes completely silent, especially right after a storm, a power blip, or if the same circuit also runs a freezer or another appliance that can overload it.

2

Rule out the remote

Replace the remote's battery first, since a weak or dead battery is the single most common reason a remote stops working. If a second remote, or the wall-mounted control button, also fails to trigger the door, that rules out the remote and points toward the opener itself.

3

Check the wall control button and its wiring

A stuck button, or a wire that's been chewed or pinched, can mimic a completely dead opener. This is more common than it sounds in garages where the control wiring runs along a wall near stored bikes, tools, or seasonal boxes. Trace the wire visually from the wall control console back toward the opener unit and look for obvious damage or a loose connection at either end.

4

Check for vacation or lock mode

Many openers include a lock switch on the wall control console, or a lock feature built into a remote, that disables every other remote as a security measure, and it's easy to bump by accident while reaching past the console. If nothing responds to any remote, but the wall button still works, look for this switch or setting before assuming a bigger fault.

5

If there's still no light, sound, or motor movement at all

At this point, with the outlet and breaker confirmed fine, both the remote and the wall button tested, and no lock mode engaged, the motor or the opener's internal logic board has likely failed. That's a decision for a technician, or about a replacement unit, rather than a further step to try at home.

The opener has power but the door still won't move

This is a different symptom and worth separating from a fully dead unit. If the opener hums, or its light comes on, but the door doesn't travel at all, that points to a mechanical or sensor issue rather than a power problem. Depending on what you're seeing, that might mean the door not responding to any input at all for reasons that live upstream of the opener's own power supply, or it might mean the door is reversing or refusing to close instead partway through its cycle. Both of those pages cover that ground in depth already, so there's no reason to repeat it here.