You really should shut the main 120 volt breaker off BEFORE you kill the genny. and if you are plugged into shore power leave it off for a full 3 minutes before turning back on.
WHY
Inductive loads inlude the Air Conditioner blower and compressor. Now the blower is not much damaged by a "hot switch" from one source to another but the compressors .. Well they will stop as soon as power is cut since they have a full head of pressure. and then try to restart.. NOT GOOD because they do not have that much OOMPH so they do the locked rotor thing (Very high current).
Also they can suck some major current when the voltage drops as the generator shuts off but I've never seen 'em trip my main breaker. the 30 amp on the genny yes. the 50 amp main no. If yours is a 30 amp rig.. Well perhaps it can trip that too.
also on 30 amp 2-A/C rigs. on Genny the two A/C's are on different generator outputs.. (One. usually the rear is no longer on the main power panel) but when you kill the genny they both are on the main panel you have to shut one off or use a selector switch That too will trip a 30 amp breaker with both Gennies trying to hot-restart.
