I know this old...did you find solution to the problem?
If Pansat's LNBF's aren't any better than their AP-600 positioners, I'd steer clear of them. I bought an AP-600 from Rainier a couple years ago, and it was constantly blowing fuses or locking up. I took it out of service and used a Uniden Ultra and it worked flawlessly until I switched it out for a UST-300 stand alone unit that's still working today. I switched the Ultra out because I couldn't see the satellite positions.