Sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move.
Garage door opener hear motor but nothing is moving.
You may notice physical damage to the capacitor leaking buldging etc.
Use the emergency release.
This is frustrating especially if you re trying to get your car out of the garage.
Because it hums when you try to open it the battery is working properly.
If the motor hums but the chain doesn t move that indicates a problem with the motor.
Image taken from a chamberlain manual.
If the motor works but the chain doesn t move the chain sprocket may need servicing.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
They can hear the motor going but the door itself is not opening.
Most garage doors have an emergency release typically a red pull cord that allows the door to be opened and closed manually.
If you can manually lift the door then i d start by checking the motor capacitor.
Home owners say that they can hear the motor running but the opener simply will not operate the door.
The opener may have become disconnected from the door itself a spring might be broken each of these is a possibility when you operate the opener hear the sound you expect but the door just isn t budging.
You can troubleshoot the problem yourself though so here s what to do if the garage door opener isn t doing its job.
More likely you ll have to measure the capacitance to make sure it s within a good operating range.
The motor should be driving a chain or belt.
Automatic garage door opener runs but door doesn t move.
When the cord is pulled the motor is disengaged from the chain.
As the shoe moves into the trolley the emergency release should reset but if the release is jammed or broken that might not be happening.
When you find that your garage door motor is making a humming noise but not opening and closing it typically means that it has gone off track or needs some sort of small adjustment.
The motor will run but will not move the chain.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
If it s on the way out that could explain the intermittent failure.
I have a 1 2 hp craftsman garage door opener that is about 20 years old.
One garage door malfunction that is very frustrating is when it will not open.
There are a number of possible causes.
Garage door opener won t open all the way fix.