We made our share of silly mistakes when we first bought Sherman. The best one was constantly emptying the toilet holding tank because the sensor showed it to be full after only a day or two. We learned that those sensors are rarely accurate, and that we can go well over a week without having to empty. There are a lot of mistakes that beginners can make, and I had a couple of funny questions at work yesterday.
The first one was a woman who was having a problem with her water pump. I didn't understand what she was getting at....she was saying that the water pump was staying on too long after they shut off the water, but she couldn't explain it properly. Eventually her husband got on the phone, and he was pretty irate. They had just bought the trailer in the fall, and were at home getting it ready for their first trip out in a week or two. They had hooked everything up at home, just to try out the various systems in the RV. When they turned the water on, the pump would run constantly. The water would come out of the kitchen faucet no problem, but when they shut off the water, the electric pump would continue running. Eventually, we figured out that they had hooked into the city water line, and of course the pump shouldn't even be turned on. He went from irate to embarassed in a split second when he realized what he had done! Then we all laughed and he apologized.
Then later on, a couple came in who had bought a used trailer. They had it plugged in to 120v AC at home and were trying to get the furnace to work. (It has been going below freezing here the last 2 nights!) They said that the furnace fan will come on, but that was all...no heat coming out. Turned out they hadn't turned the propane on, thinking that the furnace must work off electric when plugged in. Again, we all had a good laugh, and their problem was solved.