I think it’s dirty contacts in the back end.Yep hopper is fragile as fuck, I manage to get my going again but it started doing 2 sec red light to blue and no heat but felt like it was still generating tiny micron of heat so I just kept turning it on and sucking hard, I noticed the clicking of the heater is way more prominent but then finally it was like some sensor got unglogged and it started giving me full heat again
Let's see how long it hangs on because it did a similar thing earlier today
I wonder what Hopper has to say about using a mild contact cleaner on the back end.........seemed to work for my oldest unit.