Hey guys. Im really hoping someone can help us here. I have a pool Pilot setup here at my hotel. and we got the OPEC Error reading. Long story short we bought new connection phone cords to relay the connection, nothing, still got error. then we bought a new 838 board that's on the ORP/PH sensor side, still got the error after that, we then bought a new board that's on the Controls Side of the unit that the Tri-sensor cord and the 2 other plugs that plug into this board, and STILL have the error. Does ANYONE know what we can do to fix this?