These FAQs pertain to the ST-7 family of cameras (including all versions of the ST-7/8/9/10 and 2000 series):
How come I loose the link to my camera when I turn on the cooling?
I see vertical streaks in my Focus mode images. What's wrong?
I'm worried the fan is vibrating the telescope. Can I turn it off?
What can I do to speed up focusing, particularly with my Parallel ST-8 or ST-10?
What the heck is that little black cylindrical thingie that came with the camera?
Why doesn't the camera's fan come on when I plug in the power supply?