We own a coleman presidential II heating&air conditioner the fan won't turn anymore is the motor needing replaced and where do I find the parts

Fan?? There are 2 at least, which one ? The blower fan or the condenser fan (that is outside)

Is it froze up? Have you tried helping it along by spinning

Yeah it's broke, get the parts from the store.

Coleman presidential II heating&air conditioner

Its in a trailer.