The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Garage door openedr making noise but wont open.
If the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
If it is the door there are several reasons why it won t open.
It sounds very obvious but when you re in a rush and trying to leave.
Use a screwdriver to tighten the wire.
While the unit is open inspect all the gears and sprockets.
A worn belt or chain and cable assembly can also make noise tighten chain or belt tension to correct this problem.
Shut off the power to the garage door opener.
You may notice physical damage to the capacitor leaking buldging etc.
Turn the power back on and the door should open and close normally.
The opener motor is fine but the shaft doesn t turn.
Replace the gear and sprocket assembly or the drive and worm gears when they re worn and making noises.
Check that nothing has fallen into the garage door track.
Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises.
You might be out of range.
If it has remove it and try opening the door again.
When your garage door won t open with the remote there are few things that can cause this problem.
If it s on the way out that could explain the intermittent failure.
Check the door s electric eye.
That is the buzzing sound that the customer hears.
The gears are spinning but nothing else is happening.
More likely you ll have to measure the capacitance to make sure it s within a good operating range.
It can also be caused by attempting to use the garage door opener with a broken torsion spring.
If the door opens with the wall switch a simple battery change in the remote should do the trick.
In this video i ll show you the issue with a garage door opener that makes noise but won t move.
The antenna on the motor could be damaged or blocked from the signal.