my Ford/Newholland 1215 tractor has the ignition switch that has a pre-heat setting for the glow plugs- I pre-heated them and the tractor started however, the voltage regulator/rectifier started smoking like burnt toast, I quickly turned of the tractor and removed the battery cable. I have replaced the voltage regulator/rectifier but when I connect the battery the charge light on the dashboard comes on and stays on. Do I have a bad voltage regulator/rectifier new out of the box?