I did some checking today and a good way to prove your switch needs to go into the circuit with the dropdown reducer resistor is to check voltage at the switch. With the fan on, if you get 12v or thereabouts at the switch, its overheating the resistors. With the reducer between the bat terminal of the switch and IGN, you will solve that problem. My only 6v motor is toast, so I have to find someone who will sell me a working one to do further tests, but that will ensure you have those fragile resistors properly wired for the winter.
Glad to help Eddie!
