Service Manual...
And here's the link to a service manual I found online.
I discovered that there is a little bit of clog in the power head. It's probably why the previous owner sold it. I think it will be easy enough to clear out.
I'm excited to use it!
[URL unfurl="true"]http://www.tcclean.com/manuals/Windsor/SensationSX2_UR_Old.pdf[/URL]