My LL Econo fan wasn't coming on at all. After speaking with Neil @ Coal-Trol, he had me turn my max setting down to 30 from 40 and then fan came on. I am new to this system but,(experts, correct me if I am wrong) the fan is based on the FR and by decreasing your MAX, your FR goes up, when your feedrate goes up, the fan goes on. After doing the math, the feed time is pretty close to what it was before changing to 30 max, the fan just comes on now. I actually have turned my max down to 20 tonight and the fan is blowing harder because the FR has increased....confused? I am just now beginning to understand it, until I have to explain to my buddy after a few beers then the rational of the whole thing goes out the window.His eyes kinda glazed over.
Max @ 40 the FR was about 29, no fan
Max @ 30 the FR was about 49, yes fan
Max @ 20 the FR was about 63, better fan RPM.
With all this change, My stoker time on averaged 14-16 sec per 100 sec.
CFT is set to 2
Hope this helps. Experts please correct me if I required.
Just my experience