Title: +038=310.101-##047._01-FDV DrM vanning tak.pdf
Use the external bleed screw to flush the valve. If performance does not improve, turn off water. Unscrew bonnet screws and remove bonnet. Remove diaphragm and clean it in clear water. Reinstall diaphragm and bonnet. If necessary, replace the diaphragm with kit number 210746-03.Valve won’t open.Check water source, controller power, and flow control to make sure they are open.Turn off water. Unscrew bonnet screws and remove bonnet. Inspect body for debris. If filter is missing from diaphragm, replace diaphragm with kit number 210746-03.Turn off water. Remove solenoid and replace with a known working solenoid. If the valve still won’t open, replace the solenoid.Valve slams on / off (water hammer).Check system water pressure. If pressure is greater than 80 psi (5,5 Bars), install a pressure regulator on the line before the valve to reduce water pressure.