I have a 1997 Chevy Silverado 1500 heating problem first off my harness to the blower switch burned up replaced harness and complete control module work good for a week now I don't have high speed and my temperature control along with the blend ***** doesn't work and I have very low heat coming out front vents and cold air coming out of the defrost. I've replaced high speed relay and the resistor. None of the actuators doesn't have any power. Any help would be very much appreciated.