A constant grinding noise could be a sign that your garage door opener s chain or belt is either too loose or too tight either way it needs adjusting.
Grinding noise chain not moving on garage door.
If the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
Squeaky garage door or garage door grinding sound when opening or closing.
This wear could damage the roller surface causing them not to roll correctly.
If you hear a garage door grinding noise it could be the rollers.
This excess tension causes the gear that moves the chain to grind down.
If the gear becomes too worn it will no longer be able to move the chain.
If the motor hums but the chain doesn t move that indicates a problem with the motor.
The door track rollers move each time you open or close the door leading to a lot of movement and causing wear.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.