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MAINTENANCE
Troubleshooting
Troubleshooting
Problem
No power to pressure switch due to
blown fuses, open switches, or loose
Motor will not
connections
start
Pump pressure switch is not closed
Pump not completely primed
Pump fails to
Suction lift is too great
deliver water
Foot valve is either not submerged, bur-
ied in mud, or plugged
Air leaks in suction line
Pump loses prime
Well draws down too far
Faulty foot valve
Leaks in suction or discharge line.
Foot valve, suction line, impeller, or noz-
zle are partially plugged
Pump delivers
Suction lift is greater than recommended
water, but not at
rated capacity
Improper impeller rotation or low speed
Venturi or diffuser is plugged.
Motor is wired for improper voltage
Faulty air volume control
Pump starts and
Air leaks in tank above the water level
stops too often
Incorrect setting on the pressure switch
10
Probable Causes
Corrective Action
Check all electrical connections for secu-
rity. Check breaker and fuses.
Close pump pressure switch.
Prime pump.
Relocate the pump closer to the water
source.
Inspect foot valve, making sure it is sub-
merged. Clean or replace as needed.
Inspect suction line. Repair or replace as
needed.
Move pump closer to water source.
Inspect foot valve. Clean or replace as
needed.
Inspect the suction and discharge lines.
Clean or replace as needed.
Inspect parts. Clean as needed.
Relocate the pump closer to the water
source.
Ensure proper gauge wire has been
used.
Clean as needed.
Check to ensure voltage indicator on
pump matches voltage at power source.
Replace air volume control.
Check fittings. Replace tank.
Adjust setting on pressure switch. Refer
to
"Changing the Voltage" on page
4.
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