2010 Winnebago 40L. . .from Hell !

This is one reason I like to buy used (price point is another). Just picked up my 03 Adventurer that was traded by the first owner. Looks like all the gremlins were worked out by them. I hope the OP gets their issues fixed, but to add my 2 cents, every "new" RV I have purchased has spent an inordinate amount of time in the shop getting "calibrated." My previous 2 used units gave me very few issues. I hope I will bat 3 for 3. I think it will be hard to call the OP's rig a "Lemon" with one "shakedown" under the belt. If problems persist then it will prove to be so. I recently registered my MH as the second owner with Winne and they called and wrote welcoming me to the family, asking me to visit the factory if I am up their way (this with a 8 year old coach!).