Blower Motor power wire getting very HOT
96 HR Endeavor, Freightliner chassis, power wire suppling 12 v. for selector switch (dash AC and heat and fan) got so hot it melted fuse box connection. replaced wire and fan several times (new) still...
Forum Discussion
I assume that the fan switch is multi-speed. I would guess that the resister element in the speed switch has a partial short to ground.
You can use a multimeter to check the current(Amps) draw of your fan but I would guess that it is drawing a lot more current when hooked up through the switch than when wired direct. If it does, this would indicate a bad switch.
You can use a multimeter to check the current(Amps) draw of your fan but I would guess that it is drawing a lot more current when hooked up through the switch than when wired direct. If it does, this would indicate a bad switch.
