I'm in the process of putting a fresh air heater in my '53 which has been converted to 12V by a previous owner.
Before I put anything in, I'm bench testing all the electrical stuff with a 6/12 volt battery charger.
The blower motor is an original 6 volt, and when connected up to a battery charger (6 volt setting), it runs great.
Then, using jumper wires, I put the switch I bought from Chevy Duty and the voltage reducer from 5th Ave. in line between the charger and the heater. I get one speed---ultra slow. None of the other switch settings work, either on 6 or 12 volts. I then took the reducer out of the loop and used just the switch on 6 volts. same thing. I then took the switch out of the loop and used just the reducer on 12 volts and then all I got was a humming sound from the motor.
What am I not getting here? Could both the switch and reducer be defective????
Anyway, on the back of the heater switch there is a coil of wire around some sort of insulator. What is that all about? Is that a built in voltage reducer? It got red hot when I tried other settings other than low. That's not normal, is it? Am I correct in assuming that the incoming line from the ignition goes to the terminal with the coil, and the outgoing line to the heater motor goes on the terminal without the coil?
Thanks for any advice.
