All ActivityMost RecentMost LikesSolutionsWater Heater RepairHi ,I have a American Appliance water heater model FDSI6 . Does anyone have information on this one ? I'm pretty sure the tank is leaking, but I need to take it apart to check . Trying to find out if it is an aluminum or steel tank and how it all comes apart . Thanks . RodRe: What did you do to your Class C MH today???Started to get ready for a weekend in the mountains. Saturday forecast sunny ,sunday cold rain and snow. Rod