Heater / Blower Fan won't work. on 2001 Dodge Dakota

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Heater fan will not work in any position. The Resistor was replaced a year ago and was working fine, until now. The fuses appear to be good.
(2) Answers
Ok so it's super easy to change the blower motor/resistor/pigtails ect... but I don't care to do it once a year... does anyone know what a common problem is causing these parts to fail?