[quote=“suzukiriderman”"]
I have an old door opener at my shop that somehow is closing the door less and less the more I use it.It seems to be working fine otherwise. There is about a one to two inch gap at the bottom opf the door when it closes.
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this shuld be easy to fix, there should be limit adjustments on the unit itself. Get a ladder and take a look, should be an adjustment for the amount of force needed to lower and raise the door, as well as how far it closes and raises.