Yeah that means it is on...
Hmm, were you in session mode?
I'd suggest using on demand mode, and also loading as much as you would in the Splinter, using a little basket in front of the cooling unit... I can't imagine loading more than I would in the mighty even, that's a lot! May have hurt your air flow and performance that way
Also though if you cleaned and disassembled the cooling unit, make sure you put it together properly and that there are no air gaps there?
Taking a rip at 5.5 this way, should yield a huuuuge cloud right away in my experience...