It is easy to see if you are the one drawing all the power. Look and see how much power is being used when you are pluged in, then just unplug the RV and see how much the meter slows down. If there is a great difference then you know if is your RV causing the problem. One of the reasons could be a short in your rig. If you have a short you are just putting power into the ground through your jacks.
