Did you get a motor with the same amps? did you check to what the amp draw is on the old motor to the new? reason is different amp ratings on motors need dfferent blade pitches, also 2,3 or 4 blades pull different cfm. is the motor a belly band mount or does it hang by studs? also check to see if the capacitor is the correct uF. hope this helps you feel free to ask any question if this does not help you.
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Did you get a motor with the same amps? did you check to what the amp draw is on the old motor to the new? reason is different amp ratings on motors need dfferent blade pitches, also 2,3 or 4 blades pull different cfm. is the motor a belly band mount or does it hang by studs? also check to see if the capacitor is the correct uF. hope this helps you feel free to ask any question if this does not help you.