That said, the internet does seem to suggest these AV models have some kind of temperature protection. May be worth looking up how to reset it, as it might be a known thing if it’s in a confined space, in direct sun etc.
Cheers - much appreciated. I wasn't sure if equipment generally didn't like the heat but the more I read it sounds like something has tripped a protection mode. Frustratingly there's nothing in the manual so more research is needed...
That said, the internet does seem to suggest these AV models have some kind of temperature protection. May be worth looking up how to reset it, as it might be a known thing if it’s in a confined space, in direct sun etc.