Condenser motor has NOTHING to do with the HVAC fan motor. Bad condenser motor could sure cause the A/C to shut down, but the air would still come out, just not cool!
Assume from your last post that the fan motor actually quits, not just does not blow air out the defrost vents or other location (a very different issue related to your vacuum pump).
If resistor wire direct to verify that the fan motor works fine. There is nothing exotic about the resistor on your coach-- pull it out and take it to any GOOD parts house (not some 17 year old kid with a computer).
You should also have a schematic for your dash HVAC fan (or can get one from James Triana at Foretravel 800 955-6226). The fuses for your fan are under the left side of the dash-- just lift up the dash, it is hinged.