2001 fleetwood discovery air conditioner question

We have come up with an interesting situation here. We have an Intellitec ems system in the coach. There are times on 59 amp or gen service only one ac will operate. We shut it down pull all power including 12 volt from the Intellitec wait a few minutes, restore power system reboots both airs work fine until they shut off again. Then we have to go thru the same drill to get them running again. No other draw on the circuit.