2005 GMC Sierra 1500 HD Q&A

2005 GMC Sierra 1500 HD Question: HEATER AND RESISTOR REPLACEMENT

WE DID BOTH, PUT IN A NEW BLOWER THATHAS A LIFETIME WARRENTY , REPLACED THE RESISTOR TWO TIMES , ALSO CHECKED FAN SWITCH. WAS OK AND WORKED ON ALL SPEEDS, AFTER ALL THIS ,FAN ONLY WORKED ABOUT A WEEK. WHAT NOW ???? -
Answer 1
Possibly a defective blower motor -