Garage Door Buzzing Sound

This can be a common problem in garage door openers utlizing dc motors such as the overhead door phantom 777cd or even the newer model overhead door legacy 850 2029.

Garage door buzzing sound.

It can also be caused by attempting to use the garage door opener with a broken torsion spring. The gears are spinning but nothing else is happening. Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises. Because it hums when you try to open it the battery is working properly.

Replace the gear and sprocket assembly or the drive and worm gears when they re worn and making noises. Unfortunately this is just something that happens with usage over time. This wear could damage the roller surface causing them not to roll correctly. A worn belt or chain and cable assembly can also make noise tighten chain or belt tension to correct this problem.

The door track rollers move each time you open or close the door leading to a lot of movement and causing wear. If you hear a garage door grinding noise it could be the rollers. For example if you encounter a humming noise in either the overhead door legacy 850 model 2029 or standard drive 650 1029 with a date code prior to 15198 the manufacturer recommends to replace the transformer part 39342rs.