Hi there. I've got a 2002 Express 1500 conversion van. When I shut my engine off, the blower motor is still getting power. Even turning off the main selector switch I still end up with a dead battery the next morning. After hours of scouring the internet on a solution, it seem's changing the blower motor resister was said to fix it. No dice. put in a new resistor & no difference. Does anyone have an idea what the problem might be? Thank's for any help you guy's can offer.