I'm looking for some experienced input regarding the EVSD-5U-PRO Multi Function Valve. My unit is not responding to transmitter input for gear up/down. It works fine in the manual mode and the system holds pressure very well. The brakes work well also. I checked to be sure the transmitter is still programed properly using another reciever with a servo. That worked. Maybe water in the system? Even though I have a water trap on the fill valve.