ok, if the capacitor is perfect, the problem is the motor coil, but testing the capacitor and measuring it well is not enough, if you tested it with a new 0km capacitor then the winding is no longer useful. I had similar problems, the measurement was good but the fan was running at low speed.
WHO WAS THE ONE WHO VOTED NEGATIVE AND THAT SUSTAINED HIS VOTE AND EXPLAINS BECAUSE BUT IT DOESN'T SERVE WHAT WAS WRONG WHAT I POSITION; BECAUSE IT IS VERY EASY TO PROVIDE NEGATIVE AND NOT TO SAY BECAUSE I SAY IT AGAIN IS THE TRAINER; UNDERSTAND ANYONE WHO HAS A LITTLE INTELLIGENCE THAT MEANS THE FAN IS UNDERSTOOD; IF NOT EXPLAINED THIS IS THE LAST TIME I PARTICIPATE IN I REPAIR