UPDATE UPDATE new info. I appear to have an excessive amp draw with the zone 2 air conditioner. 120 volts to RV, nothing else running. Zone 1 AC pulls around 16 amps starting and runs at 12 to 13 amps. Zone 2 pulls like 22 amps starting and runs at 18 to 19 on air conditioner low fan. On air conditioner high fan it pulls 25 or 26 starting and runs at 22 to 23.
It is not tripping circuit breaker but I'm thinking the high amp pull is causing the fan motor to shut down. Question is why the fan motor and not the compressor? I cleaned everything when I put the new motor in. I guess I'll look next for some loose connections but I'm thinking it's a compressor problem.