Pump Starts And Stops Too Often - Xylem Goulds CentriPro Series Service Manual

Pump Runs But . . .

Pump starts and stops too often . . .

Problem
1. Leaks in piping system.
2. Faulty pressure switch.
3. Waterlogged galvanized tank,
faulty air control.
4. Leaking tank or air valve.
5. Not enough suction lift on
shallow well system – water
flows into pump (flooded
suction).
6. Insufficient vacuum or vacuum
does not exist for long enough
time to operate air control.
7. Improper air change in
captive air tank.
8. Tank too small for pump.
for pump.
Recommended Action
Pressurize piping system
and inspect. Repair or
replace.
Check contact points.
Adjust or replace switch.
Pumps using Brady control:
Test by holding your ear on
air control. If control is
operating, air can be heard
passing from control into
tank when pump stops. If
no air movement is heard,
air control should be
replaced.
Use soapy water to find
leaks. Repair or replace.
Throttle suction line with
partially closed valve.
Pump requires minimum 3"
vacuum for 15 seconds.
See tank checkout.
Replace with proper size
storage tank.
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