Dave Sr. from SWISCO responded:
June 4, 2013
First, I would make sure that your door is installed correctly. Believe it or not, sometimes installers put these doors in upside down. It happens more often than you'd think. If you aren't sure if it is or not, you can send a few pictures of the rollers and let us know which are the top and which are the bottom, and we can determine from there. Thanks!
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