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1997 cherokee heater fan blowing fuses


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.

Replacing Leaf Springs on a '95 jeep Wrangler
It is a 'big' job. The last one I helped on took 5 of us 2 full days and we do know what we are doing.... We live...

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, 'glbutt nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! (More Off Road album links at bottom of the view page)

big AL


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Replacing Leaf Springs on a '95 jeep Wrangler

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manual door locks converting to electric