Dashboard lost power

[Jukenut]

Hello,
I have a 2019 Newmar Canyon Star 3710, ford V10. Heading from NY to Myrtle Beach, I95 shut down in Fairfax va, I needed to take a detour, pulled off side of road to plan rout, outside temp was in the 90’s. Sitting on side of road for good several minutes, maybe 10 minutes, with dash AC running, I have my route planned, pulled back out into traffic, seconds later, AC goes dead, fan stopped, dash looked like it went dead, but almost instantly came back to life. I shut AC off, just kept fan on for a few miles until things cooled down. My thought was maybe everything is running hot after sitting on side of road, maybe a thermal fuse some where needed to cool down and reset. Can anyone offer any insight why dash and AC went dead, but came back seconds later?
This is second time this happened in four years of ownership, first time was similar situation.
Is there a thermal fuse ?

Thanks for the help

[shepardmike]

Some coaches have a 12V continuous duty solenoid that controls power to the dash controls like AC, the radio, the overhead fans etc. I know mine does and have experienced the exact same symptoms. It sounds like it's starting to go bad.

[Monkey21144]

I had a similar issue going to Florida last year.

How much additional stuff did you have on your 12VDC rail? 12 Volt power ports....USB connections etc? Mine occurred when I turned on the overhead front fans for more airflow in the cabin area. Freaked me out!

The system restored before I could get to a rest stop. I did stop all the same to see if I could recreate the issue, I could not.

My best guess is a thermal fuse trip that resets after cool down. And depending on the load it trips.

I have to get back to trying to segregate non-critical dash systems from critical and placing each on a similar setup so the load is not shared. Newmar is good about providing wiring diagrams, so I figure that's a good place to start planning.

A design flaw for sure. Critical dash information systems should never be on the same protective circuit as accessories like charging ports, overhead fans and such.