Question Very warm Flexboss 21

I'm wondering what is too hot for a Flexboss 21.  I've noticed recently on warm days when the temperature in our garage reaches 80° F, the front of the Flexboss is warm and the top ventilation is too hot to touch.  I've checked the data history on the monitoring website and some of our "Tradiator" values have reached as warm as 68°C (155°F).  These seems to happen shortly before the fans spin up in the morning and shortly after they spin down in the evening.  155° seems awfully warm for the fans to have spun down.