Whenever I am checking out a system and check amp draw on the motor(s), I am noticing that sometimes there is a difference in amperage on the hot wire and the neutral wire. Yes, I know this is not supposed to be and is more serious as the difference in the amp measurements increases. What are the guidelines on when it should be a concern and what exactly is happening to the motor? I know that in a series circuit, you have the same amount of current throughout. So, is this the current being divided somehow as in a parallel circuit?