I have a very small flow of water in the refrigerator door and none to the icemaker. This was not a problem until I installed a new RO unit. I have an excellent water flow from the RO at the sink
Do you have any idea what the water pressure coming out of your Reverse Osmosis system is? Appliance water valves a lot of times don’t work real well with those systems. Flow and pressure are two different animals.
I was able to move one set of the wires to the other plug on the water valve but I still had no water flow to the ice maker when I moved the control arm.