Report "I HAVE APRO-MIG 110 VOLT WIRE FEED WELDER ok,WHEN I TURN IT ON THE FAN MOTOR RUN'S BUT WHEN i PULL TRIGGER THE WIRE FEED MOTOR DONT RUN i'VE CHECK'T THE MOTOR FOR CONTINUITY AND i HAVE THAT,SO IT ALSO HAS A SMALL PC BOARD ,HOW CAN i CHECK THE DIODES AND OTHER PARTS ,AND ALSO HAS A RECTAFIER AND CAPASITOR ,JUST HELP IF YOU CAN . THANK'S BILLY"