Cycle Stop Valves
Constant Pressure Pump Control Valves
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CSV3R Troubleshooting

Pump is cycling off and on Pilot screen is stopped up Clean screen
Liner is not seated correctly or debris or sand caught between liner and seat Remove liner and check for debris, reinstall liner
Pressure switch or valve not set correctly Cut off pressure must be higher than valve pressure. Reset pressure switch or valve.
Liner not seated correctly or worn out or debris caught between liner and seat Remove liner, remove any debris. Suction test by placing liner on flat surface and pressing on the center. Liner should hold suction. Reseat liner or replace if worn.
Waterlogged pressure tank Replace tank
Bad or torn diaphragm in pilot valve Replace damaged diaphragm
Low Pressure Valve is not set correctly Reset valve
Check red shoulder fitting on pilot for enlarged or missing orifice Replace worn orifice
Demand is more than pump can provide at desired pressure Reduce demand so it is within pump capabilities to maintain desired pressure.
Chattering valve Pressure tank is located too far away from the valve Relocate valve or tank to bring them closer together or add a second smaller tank to the system close to the valve.
Too much air pressure in tank Reduce air pressure in tank to 5-10 PSI below cut in pressure.
Pump rapid cycles at start up and then begins to function correctly Pressure switch is located on the main line or closer to the main line than the pressure tank. Move pressure switch to a small line at the base of the tank on a line no larger than 1 1/4" in diameter
CSV setting is too close to cut off pressure Set pressure switch cut off pressure at least 10 PSI higher than CSV setting
Air pressure in tank too high Reduce air pressure in tank to 5-10 PSI below cut in pressure
Multiple check valves in system working against each other Remove all but the check valve or foot valve on the pump itself
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Cycle Stop Valves, Inc.
10221 CR 6900
Lubbock, Texas 79407
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Fax: 806-885-1994