400 reliability

How is the AC, Hot Water and Heating systems in the 400 Boondock, are they reliable or do they break allot.

They’re good.

No problems with my 2021 400.  10,000 miles and counting.

We own a 2018 Tab 400 and have about 20000 miles on it now. Our Coolcat AC and Alde have been heavily used during that time. The only thing that has failed so far is one of the gas connectors to the propane tank in the tub cracked and started leaking on our January trip earlier this year, which prevented the Alde from working. We replaced those parts at a Camping World on that trip.

I suspect that at 5 years out, we should expect more of those appliances to break and need repair or replacement now, but overall we've been happy with our Tab.