I never had any problems with the PCI crew. They always took care of me.
Randy I was in the same boat about 18 months ago I bought a used Cl-650 chiller from a closed down LFS in Oregon City this guy who owned it was just switching to do peoples Tank Maintenance. Being I live almost 200 miles away He guaranteed me it was good and just used for chilling a lobster tank .. The chiller was in great looking shape on the outside so i bought it with a Gen-X pump as well ( Used)
Well got home and set it up on a 75 gallon Tank with 2 ea 250 Halides and this chiller was Junk could not handle the load the a/c unit would bind up from Hi head pressure ( A/C refrigeration specialist) told me again more cost to have local guy check out my Freon charge and find out what was wrong.
Called PCI many times for parts and a Manual got good service But In the long run the CL-650 is sitting on a Junk Pile in my Garage. End result of PCI chiller products Junk. Very happy to have switched over to Current Prime chillers with no problems.
Still have that Gen-X pumping water
Good luck ...Jeff