Get logic board replacement.
Garage door bounces up when closing.
To adjust the switch there is usually a screw on the motor unit that when turned will increase or decrease how far the door descends when closing.
I was wondering if it was the new springs that is causing the bouncing.
This brain can wear out in time so you could need a replacement.
The bounce occurs at the 1 3 or 1 2 mark.
Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up.
Since then the garage door was intermittently bouncing when the door is closing.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.
Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off.
If the pressure reaches a dangerous level caused by blocked rollers the door will reverse.
After clearing any obstruction from the track try lubricating the rollers using wd 40.
The garage door will automatically go in reverse.
Your garage door s logic board is the brain of your garage door opener.
It goes partway down reverses direction and goes back up again.
A careless or rushed parking job can cause the car s bumper to block the sensor.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Most garage doors contain a secondary safety mechanism to sense undue stress while closing.
This is almost always the result of a dirty.
By wade shaddy updated december 19 2018 you push the button to close the garage door.