I think the fuse is in the cassettes compartment up to the left side just under midway. Don't mess with fuse yet send email me I've made up a help file you will be the 20th I sent the attachments to, some to Australia, and one yesterday one today.
robertwhiting76(at)hotmail.com substitute (at) for the proper email symbol or it won't go,
It's because forum does not allow email addresses. I'ts most likely the pump has jammed usually through lack of use during storage. Have you actually accessed Thetfords pdf downloads if not let me know I also have a file on accessing the downloads.
Be quick with your email I am away soon.
Bob, June 2009