AC/Heat blower switch

613111

{"text":"New here...06 Peterbilt 378. AC Heat control panel is a mear 575 dollars..Replaced less than a year ago and this one is also fried. There are two rather large guage white wires in the cluster that plugs in the back of the panel. When the fan is switched on they heat up. Not warm but burning hot! Hot enough that it eventually melts the inside of the switch assembly. So there has to be resistance someplace. Have replaced blower motor and resistor..not it!! Still burning hot. Any ideas other than a larger fire extinguisher??","pics":"[]","canComment":true}