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Garage Door Motor Not Working or Not Responding?
Dead silence, a hum that goes nowhere, or a click and nothing. Each sound points at a different fault, and one of them isn't the motor at all.
Quick Answer
When a garage door motor is not working or not responding, the sound it makes tells you the fault. Silence with no light points to power: a tripped RCD, an unplugged unit or a failed transformer. A hum with no movement usually means a stripped drive gear or a failed capacitor, so the motor is energised but can't drive. A single click and nothing is typically the logic board or a seized motor. And a motor that strains, moves a little and gives up is often not a motor fault at all: the door has become too heavy because a spring has broken. An opener repair and a replacement supplied, fitted and programmed are quoted side by side once we know which part has failed, so you can weigh one against the other.
Common Causes
No power reaching the opener
A tripped RCD, a switched-off outlet after garage work, or a failed internal transformer. Always the first thing to rule out, because it costs nothing.
Stripped drive gear
The plastic gear inside the powerhead sheds its teeth. The motor spins audibly and the door doesn't move, a common fault on older Merlin and B&D units and a standard garage door opener repair.
Failed capacitor
The motor hums but can't start turning under load. A small part, and often mistaken for a dead motor.
Logic board failure
One click, or behaviour that comes and goes with the weather. Boards degrade with heat, humidity and salt in the air.
A broken spring, not a broken motor
The opener is fine but is being asked to lift a door it was never designed to carry alone. It strains, stops, then trips its own overload.
Safety circuit halting operation
Some openers refuse to run at all when a sensor is disconnected or faulty, which looks like a dead motor rather than a sensor fault.
What You Can Check Safely
Safe to check yourself
- Check the opener's light and the RCD in your switchboard; no light at all means a power problem
- Listen carefully and note the sound: silence, hum, click or strain each mean something different
- Try the wall button as well as the remote to rule out the handset
- With the door DOWN, pull the manual release and lift by hand; very heavy means the spring, not the motor
- Check both safety sensor lights are on, since some openers won't run with a sensor fault
Do not attempt
- Do not open the powerhead casing; mains voltage is in there
- Do not repeatedly retry a humming motor; a stalled motor overheats and burns out for good
- Do not raise the force setting to make it push harder
- Do not assume the motor is dead until the hand-lift test has ruled out the springs
When to Call a Technician
Call a technician straight away if any of the following apply:
- The motor hums, clicks or runs without moving the door
- The opener has power and light but won't respond to anything
- The door is very heavy to lift by hand with the motor disengaged, which points to a broken spring rather than the motor
- There's a burning smell or scorching around the powerhead
- Operation is intermittent, working some days and dead on others
Recommended Services
Get Help With This Problem
Prefer to call? 0476 156 953Car locked in behind a dead motor?
We can usually release and raise the door safely to free a vehicle, then complete the repair. Outside our published hours we attend emergencies, with the after-hours rate confirmed before dispatch.
Frequently Asked Questions
Work through it by sound. No light and no noise is a power fault, so check the RCD first. A hum with no movement is usually a stripped drive gear or a failed capacitor. A single click points to the logic board. And a motor that strains and quits is often reporting a spring failure rather than its own: the door has become too heavy to lift. That last one matters, because replacing a healthy motor won't fix it.
Either the motor is turning but not driving, or it's driving and the door won't budge. A motor that runs with the trolley standing still usually has a stripped drive gear, a slipped belt or chain, or a manual release that is still disengaged. If the trolley moves but the door stays put, look at the door: a broken spring, a jammed roller or a lock left on. Pull the release and try the door by hand to tell which.
Switching off at the wall for thirty seconds and back on clears many small glitches, and it's worth trying first. Beyond that, most openers have a reset that clears travel limits or stored remotes, after which the open and closed positions have to be taught again; the steps differ by brand, so check the manual. Our guide to resetting a garage door opener and remote covers the common models.
Pull the manual release cord with the door fully closed, which disconnects the trolley from the opener, then lift evenly from the centre. On a balanced door with healthy springs it rises with modest effort. If it's enormously heavy or wants to drop, stop: that's a spring failure and the door's full weight is unsupported. Re-engage by running the opener until the trolley clicks back on, or as the manual describes.
It depends on the door's type and weight, which opener suits it, removing the old unit, and how many remotes you want coded. A repair to the existing unit is priced on the part the fault needs, so we give you both figures side by side. A repair is usually the right call on a younger opener with a single failed part; a new garage door motor supplied and fitted makes more sense when remotes are discontinued or the board has already been repaired once.
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