HEATER AND RESISTOR REPLACEMENT on 2005 GMC Sierra 1500 HD

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 ????

by in Albert Lea, MN on September 09, 2010
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1 answer
ANSWER by , September 09, 2010
Possibly a defective blower motor