142 RTAA-SVX01A-EN
Pump Package
Troubleshooting
Table 21 Pump Package Troubleshooting
Problem Possible Cause
Pumps will not run in hand or auto Power to panel is disconnected
Panel disconnect is in off position
Overload relay tripped
Control circuit fuses blown
Loose connection on power circuit
Motor fuses blown
Motor runs hot High flow resulting in high amp draw
Incorrect supply voltage
Noisy Pump/Motor Motor bearings worn
Pump impeller clogged
Inadequate suction pressure
Piping stress
Suction valve closed
Entrapped air
Pump leaks Mechanical seal damaged
Casing gasket damaged
Loose bolts
Inadequate capacity or pressure Wrong pump rotation
Suction pressure to low
Pump or pipe clogged
Air binding
Isolation valve closed
Check valve not holding
Pump operates then stops Check panel safety features such as
Differential pressure switch failure
Differential pressure switch misadjusted
Remote start/stop signal cycling
Excess system pressure Triple duty valve not set correctly
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