When the heater switch or resistor pack blows from too much power draw
on a flaky connection, they can literally 'smoke out'. When the switch
went in our Cherokee, we were way out in the Canadian bush and it sure
let the smoke out. I was running for a fire extinguisher because it
looked like the whole dash might go up in flames.
It still didn't blow the 25A fuse.....
The resistor pack failure is an 'effect', not a cause of trouble
normally. Normally when the resistor pack fails, the heater motor is on
it's way out.
I would be suspecting your heater motor is drawing too much power. Does
it make any odd noises?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06
http://www.imagestation.com/album/pictures.html?id=2115147590
(More Off Road album links at bottom of the view page)
big AL wrote:
>
> don't understand what you mean "smoke out", (I'm English), but I have
> put in a new resistor pack, so I can rule that out. I bought a service
> manual cd but have just found that although my Jeep was registered
> 1/1/1997, it is actually a 1996 model so the cd is useless, I need to
> get the info for a 1996 model now.
> :-(
