CSV125: Troubleshooting

Home » CSV125: Troubleshooting

Symptom	Cause	Remedy
Pump is cycling off and on	Pressure switch not set correctly	Cut off pressure must be higher than valve pressure. Reset pressure switch cut off to at least 10 psi higher than valve pressure.
	Waterlogged pressure tank	Replace tank
	Bad or torn diaphragm	This is usually due to back pressure being higher than 150 PSI. You will have to change models to a CSV1A if this is the case. Replace valve.
Low Pressure	Demand is more than pump can provide at desired pressure	Reduce demand so it is within pump capabilities to maintain desired pressure.
Low Pressure	Check psi marking on valve	Switch to correct model valve
Chattering valve	Too much air in tank	Reduce air pressure in tank to 5-10 PSI below pressure switch 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 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.