TROUBLESHOOTING
Problem
A. Little or no
1. Casing not initially filled with water
discharge
2. Vertical lift too high or too long
3. Hole or air leak in inlet line
4. Foot valve too small
5. Foot valve or inlet line not
6. Motor wired incorrectly
7. Inlet or outlet line valves closed
B. Pump will not
1. No priming water in casing
deliver water
2. Leak in inlet line
or develop
3. Outlet line is closed and priming air
pressure
4. Inlet line (or valve) is closed
5. Foot valve is leaking
6. Inlet screen clogged
C. Loss of
1. Hole or air leak in inlet line
suction
2. Vertical lift too high
3. Insufficient inlet pressure or suction
4. Clogged foot valve or strainer
D. Pump
1. Mounting plate or foundation not rigid
vibrates and/
or makes
2. Foreign material in pump
excessive
3. Impeller damaged
noise
E. Pump will not
1. Motor wired incorrectly
start or run
2. Blown fuse or open circuit breaker
3. Loose or broken wiring
4. Stone or foreign object lodged in
5. Motor overheated
F. Pump loses
1. Clogged foot valve or strainer
prime
2. Worn or broken foot valve
3. Hole or air leak in inlet line
Possible Cause
submerged deep enough in water
has nowhere to go
head
enough
impeller
1. Fill pump casing
2. Move pump closer to water source
3. Repair or replace inlet line. Use thread
tape and pipe sealing compound
4. Match foot valve to piping or install one
size larger foot valve.
5. Submerge foot valve lower in water
6. Check wiring diagram
7. Open valves
1. Fill pump casing
2. Repair or replace
3. Open ball valve
4. Open line or valve
5. Replace foot valve
6. Clean or replace inlet screen
1. Repair or replace inlet line. Use thread
tape and pipe sealing compound
2. Reduce vertical lift, install foot valve
and prime
3. Increase inlet pressure by adding
more water to tank or increasing back
pressure
4. Inspect foot valve and/or strainer for
debris and remove
1. Reinforce plate or foundation
2. Disassemble pump and clean
3. Replace impeller
1. Check wiring diagram
2. Replace fuse or close circuit breaker
3. Tighten connections and replace
broken wiring
4. Disassemble pump and remove
foreign object
5. Allow unit to cool, restart after cooling
1. Inspect foot valve and/or strainer for
debris, and remove.
2. Inspect and replace
3. Repair or replace inlet line. Use thread
tape and pipe sealing compound
21
Corrective Action