OK...Got the multi meter.
Installed new ATS.
I am at a different campground with 50 a shore power.
Turn break on pedestal off.
Schematic says shorepower far left three slots - black hot / red hot / white neutral and we all know green is ground.
Next three slots are Generator Black Red White
Next three slots are load Black Red White.
Black multi meter lead to ground.
Touch black (hot shore power) no reading
Touch red (hot shore power) 176 on the multi meter.
Touch White shore power - no reading
Touch black generator no reading
touch red generator no reading
touch white generator no reading
Touch load side black no reading
Touch load side red 178 on meter
touch load side white no reading.
I think what this is leading to is a short on the red hot wire leading to inverter or from the power cord.
I think I need to remove power cord and see what the readings are...If I loose the reading when the red courd is unhooked it means I have a short in the red lead in the shore power cord. If the reading is still there, it is between the ATS and the inverter.
Is this correct?