I realize this is an old thread, but is proabably valid now more than ever.
I just ordered an evercool fan
https://www.directron.com/ec6010m05ca.html?gsear=1and replaced it in a malfunctioning Da7; displayed "fan stop" error message.
After replacing it I wired up the red/red green/black & grey/blue, which ran the fan for a second with same error message. I then rewired to red/red green/blue and grey/black. No error message and Da7 runs fine, except without the fan running. Left it on playing music for about 40 minutes without heating it up enough to activate fan. Noticed on my other Da7 the fan is always on. Although there are three leads, I noticed that the evercool specs show it doesn't have PWM.
Any suggestions??