Posted 5/15/2019 23:01 (#7499313 - in reply to #7498775) Subject: RE: Raven NH3 cooler troubles. On/off valve won't open.
I had the same problem and decided the actual valve was just too hard for the motor to turn. The motor seemed to work when it was not connected to the valve. Anyway, I am just using the flow control valve now. Seems to work fine. It should be just like a single FAST valve, just not as fast.