Hvac blower on high

[Kv5137kv5137]

Ok so I start up the 96 hoe this morning and go to turn on the heat. Turn the fan speed and poof a “short”? Radio turned off then came back on bu no fan.. ff to when I get home check fuses.. #12 was busted - htr/ac. So I replace it. And now only have high.. did it blow the resistor? How can I check? Replaced it when I got it not too long ago so I would be a little pissed as it was a pita with my big hands..


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[Kv5137kv5137]

Resistor. Either the new one I put in was cheap or something shorted it.. also changed relay


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[Eveready]

If your fan is making any noise, e.g. dragging which they frequently do as the bearings get shot, it will cause that resistor to heat up and blow sooner. I would not be surprised if your bearings in the fan motor are getting stiff and causing that. If it happens again I would definitely look at the blower motor as a possible source of the underlying problem .