This stove has been idle for 4 years. Pot is empty and both slides work. When I turn it on the room fan comes on but exh fan seems stuck. Looking at diagram it shows remove left side panel to get at exh fan. I think it is stuck because of non use and maybe needs a good cleaning. This fellow passed away 5 years ago and stove has been sitting in his shop not being used. Is there a way of loosing the fan up or do I have to remove it in order to do so. I suspect the gasket maybe ruined when removing the exh fan or is it a reusable gasket? Of course the best procedure is a thorough cleaning but I wanted to get that exh fan checked out first. Any suggestions would be helpful. Thank you.