Casey from SWISCO responded:
April 30, 2010
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Tom from SWISCO responded:
September 19, 2013
Thanks for posting, Mike. The 84-078 is the upper roller, yes. It's possible that your door was installed upside-down. Now, I know that sounds crazy, but believe it or not this is a very common problem with this door. You may want a local handy man to come out and take a look at it.
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