Troubleshooting; Contact The Nearest Appointed Distributor - EBARA JEU Operating Instructions, Installation & Maintenance Manual

Ebara Self Priming Jet Pumps

Troubleshooting

Type of Fault
The pump does not work (the motor does not turn over).
Cause
No electric power
Plug not inserted
automatic switch has tripped
Thermal protection has tripped
(single phase)
Protection fuses are burnt out
(three phase)
Incorrect electric connection
Faulty motor or capacitor
Damaged bearing (noisy)
Type of Fault
The pump does not work (the motor does not turn over).
Cause
Voltage drop on the power line
Clogged filter at end of suction
Foot valve blocked
No water in the pump
Pressure too low
Type of Fault
The pump works at a low flow rate.
Cause
Foot valve partly clogged
Water level too low
Wrong direction of rotation
Wrong supply voltage
Leaking pipes
Pressure too high
Type of Fault
The pump stops after brief periods of operation (tripping of the thermal protection).
Cause
Liquid temperature too high
Internal defect
Ebara Fluid Handling
www.pumpsebara.com
(803) 327-5005 • (803) 327-5097 fax
Remedy
Check the contactor on the electric line
Check power connection to the line
reset the switch and check the cause
This resets automatically
(single phase only)
replace the fuses with others of the
(three phase)
Check terminal board and electric panel
Contact the nearest distributor
Contact the nearest distributor
Remedy
Dismantle and clean the filter
Clean the valve and check its operation
Fill the pump (page 9)
Choke the delivery gate valve
Remedy
Clean the valve and check its operation
Switch off the pump or immerse the foot valve
Check the direction of rotation
(three phase only, page 9)
Supply the pump with the correct voltage
as indicated on the data plate.
Check the connections
Check the system
Remedy
The temperature exceeds the technical
limits of the pump
Contact the nearest distributor
JEU
11
rev. 01/12