We got the Amish built unit and I installed it a couple weeks ago. Now run at 4 rather than 5 and haven't heard the cooling fan come on at all since the change, before it ran almost all the time. Instructions weren't the best but adequate. I did the whole thing myself but ours was just a 1062 so it's smaller than a lot of them.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey