Hi everyone, Wondering if anyone has any info on the ISN Reciprocating Pak Control. It's on a York YCAJ99XU7 air cooled chiller. I believe there is a faulty board in the control panel, because when circuit 1 fails on low oil pressure, it shows in the history alarms 1 kpa psig, 4 kpa psig and 3 kpa psig for suction, discharge and oil pressures. But, once reset, it all runs fine for an hour or so, then faults again. I have yet to be around the chiller when it faults like this!! Also, when system shuts down, forced by switching off toggle switch, compressor does not pump down, it just stops straight away.(P.s. Liquid line solenoids work ok). All, tranduces read o.k when machine is operating. I am after any information on the boards, if available. I have had a lot a trouble trying to get anything on this machine. Your helpwould be greatly appreciated. Cheers CHILL BILL.