Gr8adventure, were you able to test your unit with the UDS set at 60?
BTW, the way I got to 60 was by following the instructions, and as you said the fan never started moving, but I did start hearing an increasingly loud high pitched whine coming from the fan. This led me to believe the fan was trying to start. So I gave it a little nudge. At 60, it kept spinning after my nudge. So I've kept it at 60. Also, I have the HDC set at 97%.