Issue with HVAC system - Random shut off

It is automatic yes. I probably do, it's a 2012 with 550k miles on it. But since it might be something to do with the Sam Cab, which I had replaced a couple months ago at the freightliner dealership, I'm just going to take it back there. Bc it should be under warranty still. So when it gets figured out, I'll report back here so it might help the next guy out.