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The blower fan is probably either full of leaves and crap or failing. Sometimes the wiring goes bad but the motor is what I'd try first.It's bad again. Am I just getting cheap resistors or is there something that might be making mine go bad after about six months?
I can almost guarantee it's full of leaves. The original resistor that I replaced right after buying the Jeep was full of them.The blower fan is probably either full of leaves and crap or failing.
Your fan motor is bad, its windings are starting to short out from the shellac insulation breaking down. When that happens it starts drawing excessive current which burns up the resistors in the resistor pack. Replace it and check the wiring between the switch and resistor pack for signs of overheating.The resistor is a cinch to replace. ...I've done it twice.
It's bad again. Am I just getting cheap resistors or is there something that might be making mine go bad after about six months?
May be so but, if you read carefully you will see I GOT 10 YEARS out of just replacing JUST the resister so obviously you do not always need to replace one motor per resister was my only point.Resistors repeatedly going out are likely caused by the motor going out and drawing excessive current due to shorted windings. See post #11 above.