Well, replacing the heatsink compound on my flaky WGS 9150 didn't work, and neither did installing a Peltier, so I think the caps on the 9150 are probably busted (or at least it's the next thing to do). Looking to see if anyone would be willing to pick up the job. I don't need it done in a hurry and happy to negotiate a generous price for your time. The machine is located in Southern California but I'll ship, of course.