MAINTENANCE
Troubleshooting
11
Reassembly
1. Clean all parts thoroughly with dish soap and water before assembling, including the rubber cap on
the ceramic seal (8).
NOTE: If the pump remains out of service longer than one week, the components must be
installed dry and without lubrication.
2. Push the ceramic seal into the adapter with the smooth surface of the seal facing outwards.
• Wear gloves to avoid contaminating the seal face.
3. Install the seal plate (7) on the motor.
4. Lubricate the rotating seal (6) with soapy water and slip it onto the shaft with the carbon ring
towards the ceramic seal.
5. Replace the impeller (5) and the diffuser (3).
6. Replace the casing (2), making sure that the gasket is not damaged and is in place.
7. Reconnect the tubes to the casing and pressure switch.
8. Replace the drain and fill plugs.
9. Refer to “
Operation” on page 8 to start the pump.
Troubleshooting
Problem Probable Causes Corrective Action
Motor
will not
start
No power to pressure switch due to blown
fuses, open switches, or loose connections
Check all electrical connections for security.
Check breaker and fuses.
Pump pressure switch is not closed Close pump pressure switch.
Pump
fails to
deliver
water
Pump not completely primed Prime pump.
Suction lift is too great Relocate the pump closer to the water source.
Foot valve is either not submerged, bur-
ied in mud, or plugged
Inspect foot valve, making sure it is submerged.
Clean or replace as needed.
Pump
loses
prime
Air leaks in suction line Inspect suction line. Repair or replace as needed.
Well draws down too far Move pump closer to water source.
Faulty foot valve Inspect foot valve. Clean or replace as needed.
Pump
delivers
water,
but not at
rated
capacity
Leaks in suction or discharge line
Inspect the suction and discharge lines. Clean or
replace as needed.
Foot valve, suction line, impeller, or nozzle
are partially plugged
Inspect parts. Clean as needed.
Suction lift is greater than recommended Relocate the pump closer to the water source.
Improper impeller rotation or low speed Ensure proper gauge wire has been used.
Venturi or diffuser is plugged Clean as needed.
Motor is wired for improper voltage
Check to ensure voltage indicator on pump
matches voltage at power source.
Pump
starts
and stops
too often
Faulty air volume control Replace air volume control.
Air leaks in tank above the water level Check fittings. Replace tank.
Incorrect setting on the pressure switch
Adjust setting on pressure switch. Refer to
“
Changing the Voltage” on page 4.
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