While you wait for answers, we may have found some information which could help you.
Click here for Model Apart 54I took my hoover steamvac model #F5815 apart ?
Vacuum cleaner problem?
Why doesn't my Hoover spin scrub brushes won't turn?
fuse on Hoover Steam Vac Gold?
How to fix a water hose leak?
How can I fix my Hoover Steam-Vac Model F7458-900?