Blower motor not blowing? on 2005 Chevrolet Silverado 2500 HD

Fan does not blow checked fuses, switched out control switch panel. Need help any suggestions?

2 answers
RESISTER PLUGS INTO BLOWER,LOCATED UNDER PASSENGER SIDE GLOVE BOX
MOST LIKELY BLOWER MODULE AND BAD BLOWER MOTOR HAS TO MUCH RESISTANCE .