fridge and freezer cool, no water

freezer does not get cold enough to freeze and fridge is barely cold enough to keep things fresh. fridge sometimes freezes things in crisper. also no water or ice. I checked the defrost heater and it is good I replaced the defrost thermostat, all fans are working there is some ice build up on coils but not much,more or less i probably could use the freezer for a fridge and the fridge for a cooler. now for the water this stop working the same time the whole unit did, i checked the supply thats good water goes into valve and up to filter, then back to valve but nothing after that no water in line to water dispenser, is the valve faulty. any help for either of my problems will be appreciated.