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Symptom
No Water Flow
Pump won't pump
Chemical
Clogged Injection
Check Valve
Pump won't stop
TROUBLESHOOTING
Possible Cause
•
Closed Valve on Water Supply
•
Blocked Solenoid Valve
•
Closed or clogged discharge line
•
Rate Control Valve Closed
•
Pump is turned OFF
•
No Water Flow
•
Blocked Pump Discharge Line
•
Back Pressure is too high
•
Not enough water flow
•
Debris or Clumps in Polymer
•
Valve is stuck open allowing water into
polymer line
•
Water flow is still established
•
Pump is in internal mode
•
Make sure valve is open
•
Dis-assemble and clean valve
•
Remove any blockages or open any closed
valves
•
Make sure valve is open
•
Make sure pump is in ON position
•
Make sure all water valves (supply and
discharge) are open
•
Take discharge line apart, check for blockage
and clean if necessary
•
Reduce Back pressure on unit
•
Increase water flow or adjust water
monitoring device (flow switch, DP Switch,
etc.) setpoint lower than the desired flow rate
•
Check polymer supply for contamination
•
Remove valve from chamber and clean it
•
Shut off water valve or power to the unit
•
Switch pump to external
-4-
Corrective Action
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