It depends on the particular door but if you have a two car garage with on wide door getting 7 years out of a set of springs is pretty good.
My garage door slides down after opening.
Second because of the weak springs the clutch brake in the opener may be.
First is your door springs are in need of adjustment.
Once it slides down does it go back up and stop in the correct place if it doesn t maybe the gear or gear shaft on the motor is stripped.
Sometimes the door will open all the way up after it slides back and the light will turn off.
They need to be set to open the door fully without the opener.
Garage door opens all the way up and then slides back about 4 6 inches.
Garage door opener problem.
If it falls to the floor you may have a broken balance spring on the door frame.
Torsion springs are mounted directly above the door and need to be wound with special tools.
No pieces of plastic to show wear and tear.
There are two different types of spring systems for garage doors.
Slipping down a few inches after opening posted.
On 5 10 16 at 1 33 pm to sicboy.
Probably due for a spring failure.
Once the door is up all the way it s resting on the horizontal parts of the track and the resistance of the motor to turning because it is low geared should prevent it coming back down.