I think my fridge fan setup turns on @ around 80*. It's a built in setup, but that's what I seem to recall about it.
It pretty much runs anytime the fridge is cooling with either 120v or gas. Which is good.
๐Mitch
2013 F150 XLT 4x4 SuperCab Max Tow Egoboost 3.73 gears #7700 GVWR #1920 payload. 2019 Rockwood Mini Lite 2511S.