We design and engineer residential garage door openers commercial door operators and gate entry systems.
Master garage door opener troubleshooting.
Common reasons your garage door opener may not be working properly.
The garage door opener motor hums briefly then won t work.
The track is not aligned properly.
If you tried operating your liftmaster garage door opener with the remote control or door control and it didn t work.
Two possible problems can lead to a garage door reversing before it even touches the floor.
Your garage door opener stopped operating as it should.
When your garage door opener is not responding to any command from the remote or the door control you need to check if the opener has electricity.
Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem.
Motor unit assembly parts rail assembly parts and installation parts for liftmaster chain drive garage door opener models 1345 1345m 1346 1346m liftmaster 985 1240 1240r repair parts list and diagrams.
It can be quite easy to find the solutions needed to repair your garage opener.
In my article about garage door opener troubleshooting i help you to correct the most common problems without having to consult either your owner s manual or an expensive professional.
Garage door opener won t open all the way fix.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Here are some troubleshooting tips.
Check power supply to garage door opener.
If the problem occurs on the first operation of the garage door opener door may be locked.
Garage door reverses before hitting the floor.
When a remote stops working on an existing door opener it s often because you need to change the batteries.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
If it does not disconnect the garage door opener and call a trained door systems technician.
The garage door springs may be broken.
If you have a wall mounted model check the lock switch.
If your door opener is brand new the remote won t work until you program it.
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.
Disable the power door lock.
Follow the procedure in your owner s manual for doing this.
The garage door s path may be blocked.
The door needs lubrication.
Liftmaster garage door openers troubleshooting support get the liftmaster garage door support you need from chamberlain group.
If it s on the remote won t work so turn.
The batteries in the remote control need to be replaced.