So the outdoor fan motor will not come on in cooling or heating right? kok328's advice is right on.
1. I would pull power to the outdoor unit - you tube vid on how
2. with stick or long screwdriver try and move the fan blades. are they tough to turn or move freely?
3. if tough to turn then fan motor probably bad
4. open the cabinet up and check out the run capacitor (silver oval thing)
is it bulged or leaking? you can test it out if you are not sure using a multimeter with a MFD rating
5 last and this is how I check out units quickly is replace the disconnect with the cabinet open and push the plunger on the contactor -
if the fan and compressor come on than you know the problem is elsewhere. low voltage wiring etc...
write back and give an update