Unfortunately this is just something that happens with usage over time.
Garage door buzzing sound.
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.
If you hear a garage door grinding noise it could be the rollers.
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.
It can also be caused by attempting to use the garage door opener with a broken torsion spring.
This wear could damage the roller surface causing them not to roll correctly.
Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises.
A worn belt or chain and cable assembly can also make noise tighten chain or belt tension to correct this problem.
That is the buzzing sound that the customer hears.
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.
The door track rollers move each time you open or close the door leading to a lot of movement and causing wear.
The gears are spinning but nothing else is happening.