| WHAT TO CHECK |
HOW TO CORRECT |
| Pump not
primed |
Prime unit |
| Total head too
high |
Shorten
suction lift and/or discharge head |
| Suction head
higher than pump designed for |
Lower pump
inlet |
| Impeller
clogged |
Clean |
| Incorrect
rotation |
Refer to
wiring information |
| Leak in
suction line |
Repair or
replace |
| Inadequate
foot valve |
Make needed
adjustments |
| Impeller
damaged |
Replace |
| Foot valve or
suction line not submerged deep enough in water |
Submerge lower
in water |
|
Insufficient inlet pressure or suction head |
Increase inlet pressure by adding more fluid to fluid source |
|
Wrong size piping |
Make needed adjustments |
|
Casing gasket leaking |
Replace gasket |
|
Suction or discharge line valves closed |
Open |