Press fit pulleys and cast iron pulleys.
Precision garage door closing and opening again.
It s likely a pulley problem your garage door s pulley system is responsible for ensuring that the door moves smoothly up and down on its tracks so strange behavior like shaking as the door.
Ideally you should not hear any loud noise from the friction of the rollers moving along the track.
This can be done by you before calling a specialist.
If you hear squealing it is time to lubricate.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
This brain can wear out in time so you could need a replacement.
There are two types of pulleys.
Your garage door s logic board is the brain of your garage door opener.
Keep the chains and tracks lubricated.
If your garage door shakes when opening or closing or sounds like it is going to fall off the track the problem is most often the pulleys.
Your garage door is the largest moving part on your house.
Get logic board replacement.
It can be unnerving to hear your garage door opener run when no one s coming home or to find the garage door unexpectedly open in the morning or after a trip.
Use a specialty spray lubrication on your garage door tracks and chains so the motor will have an easier time pulling the door up.
When an automatic garage door opener opens and closes the door on its own it s called phantom operation fortunately the causes and solutions are usually fairly simple.