Acorn Dorwal Door Is Leaking

A home owner from Cincinnati, Ohio says:
We have two acorn dorwal sliding glass doors. They are about 25 years old. Every time it rains, water comes in on the inside track. Recently, during a very heavy rain, the water came in and drained into the family room below, damaging the ceiling. Is there a reasonable solution or do we have to replace the doors?

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Paul from SWISCO responded:
Unfortunately, Acorn is out of business and we don't have a schematic drawing of their doors. That said, there are a few things you can try before replacing the doors entirely. First see if there are drainage holes that need to be cleaned out. They would be located under the track rail that the door rolls on. There's another method that I don't personally recommend, but some door service people have found success with it: that would be caulking the stationary door outside where it comes against the side and bottom where it sits at the track. I don't think it's worth it, but it would be up to you. Finally, you can remove the doors and master frame and place a shim along the sill so that the the track is tilted facing the outside.
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