You could also have the Thermostat armed in the inverter, which will start the generators for A/C. They can be armed and disarmed; this then will allow AGS to start the generator. This happens when the thermostat calls for A/C units to cool down the coach for pets when the owners leave, check for that option being armed.
NOTE: RV's have three modes for electricity; they are, in order of priority:
1. Generator - This is what the Transfer switch/Inverter looks for first when powering up the coach.
2. Shore power of at least 20A at 120 volts available, 30A it better, and 50A is preferred.
3. If the above are not, I repeat NOT present, the inverter by default will then power devices connected to it, using the 12V house batteries, until those are exhausted. At some point in that process if equipped and enabled, it will start the generator (AGS) for bringing up the house batteries to keep that process going.
Additionally, please post the make, model and year of the coach so we know which alpine we are trying to help you with.
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech