On Monday April 5th I sent this email to Keystone Tech support.
Hi, I purchased a 2021 Alpine 3790FK last week VIN ################. Yesterday I disconnected it from shore power and a few hours later my wife noticed that the refrigerator had stopped working. I plugged the shore power back in and it worked again. I tried it again this morning and as soon as I unplugged shore power the Refrigerator went dead. Shouldn’t the inverter have kept the Refrigerator running? I have noticed that the dealer only installed one battery while there is provision for two. Could that be the problem? Is there some switch for the inverter?
Ten minutes ago I received this email from a Customer Experience Agent in response. Good thing it wasn't anything important. Doesn't this instill confidence in Keystone Tech Support?
Good Morning,
I would have an authorized dealer look at it. The inverter should be kicking on.
Thank you,
Not gonna post the agent's name just thought it was hilarious. BTW I resolved this issue the next day by talking directly to the inverter manufacturer