On the fresh water tank there appear to be five(yes 5) sensors to tell you how much water you have in the tank on the Sergant panel. Overnight the bottom one of these sensors popped out and so we found our tank empty in the morning. The popped out sensor seemed incomplete in that it wouldn't fit back into the hole so we had to find a motorhome dealer that could effect a repair - they did but we had to pay and are faced with trying to claim this money back somehow. Look out for a separate post on warranty issues! Back to the original problem - tank now doesn't lose water but Sergant indicator shows tank permanently full. Any thoughts on this? I think it'll have to live with this until a forthcoming dealer visit to fix more warranty work.