Liftmaster Garage Door Just Hums

Today we opened the door to its full open position but when we pressed the wall button to close door it would not close.

Liftmaster garage door just hums.

In addition it may spring across the garage due to the high tension. The garage door opens partially. The power door lock must be deactivated anytime you open the garage door. Sears 41a3621 1 2 hp garage door opener which i believe corresponds to chamberlain liftmaster model series 1300.

Check power door lock. Before you start troubleshooting the door you should do a preliminary check for broken springs. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. This feature prevents the motor inside the garage door opener from damaging.

Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening. We design and engineer residential garage door openers commercial door operators and gate entry systems. If the motor hums but the chain doesn t move that indicates a problem with the motor. Press the remote or the wall mounted start switch listen to the motor and watch the movement of the chain.

Garage doors are heavy and opening one in the rain or at night can be a pain especially if you have to do it in a hurry. Get shopping advice from experts friends and the community. Look for a spring that is missing broken or hanging from just one hook. The door opener has worked well for years.