Two things to check
Well...when getting your rig back from service or out of storage you need to give your RV a once over but make sure you check your dump valves. Mine has been in for warranty work three times and each time the dump valves were open. Whether or not they did work on plumbing. Iíll just say it; that could be a complete mess.
The other thing you should check is your spare tire. I just discovered mine was stolen. I had taken my rig straight from warranty service and put it in storage (damn HOA). After three weeks in storage I go to check all tires for air pressure and my spare tire is gone. They lowered it down with the cable then reeled the cable back up. Makes me suspect the shop that did work on it as a storage thief would likely just leave the cable on ground instead of winding it back up but I canít prove it. Makes me so happy.