If you determine that the sensors are not blocked you could be dealing with faulty or misaligned safety sensors.
My fiberglass garage door will not stay open why.
The door in question may not be plumb because its hinges and frame were improperly installed.
Basically you are attempting to repair the tension to a workable level.
Maintaining your fiberglass doors also means making sure that there is no water spilling down on or puddling around the doors.
Having a door which won t stay open or which droops when at the height of its lift can be troublesome.
The door frame and door are tilted and the unbalanced weight of the door causes the door to close on its own.
If the garage door sensors are detecting any objects or debris your garage door will not close completely.
Also direct any water away from your garage floor.
Release your hold on the door and see if it stays up all the way.
The main reason for this is that the springs aren t holding as they should you will need to have your springs adjusted to give your garage the ability to hold the weight of the door.
Adjusting the limit travel setting.
Depending on the brand.
Ideally the door should slowly float up from this point.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
Most likely the door is not plumb meaning that the hinges do not line up as they should.
Contact an expert to schedule repair.
Place that piece of cardboard on the door frame where the hinge will be screwed back into place.
Water can warp and damage fiberglass garage doors so make sure that your eaves trough is in working order.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.
If the door still won t stay open without assistance remove the screws from the top hinge first.
Inspect your garage entrance and floor for any potential culprits.
Hold the garage door and remove the vise grips from the track after the spring tension has been adjusted.
The most common reason as to why a garage door won t stay closed is that the limit settings are off.
Slowly close your door about halfway and release it.
Why won t the door stay open on its own.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
Cut a piece of thin cardboard to the size and shape of the hinge side piece.