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End Suction Centrifugal
8.5
TROUBLESHOOTING
Although the equipment usually functions according to the user's requirements, in some cases its operation
may not come up to expectations due to problems with the system or the power supply. The following table
may be useful in finding possible solutions in the event of failures or malfunctions:
PUMP
Fault
The motor will not start.
There is no priming.
The pump has no flow rate
Low flow rate
EBARA
PUMPS AMERICAS CORPORATION
www.pumpsebara.com
(t) 803.327.5005
Causes
- The control panel is not working
correctly.
- Motor failure.
- Faults in the power supply.
- Friction on rotation shaft.
- Pump clogged.
- Foreign bodies in the bottom
valve.
- Malfunction in the bottom valve.
- Water leakage from the suction
pipe.
- Air entering the suction pipe or
seal.
- The pump does not turn.
- The delivery valve is closed or
half-closed.
- The suction head is too low for
the pump.
- The direction of rotation is not
correct.
- Low rotation speed.
- Low voltage.
- Blocking in the bottom valve or in
the filter.
- Impeller is blocked.
- Pipe clogged.
- Air entering the system.
(f) 803.327.5097
GS Series
Measures to be taken
- Check all conditions.
- Repair the motor.
- Check and repair.
- Rotate it by hand. Reassemble.
- Repair in specialist workshop.
- Remove foreign bodies.
- Remove foreign bodies.
- Replace the valve.
- Check the suction pipe.
- Check the suction pipe and
mechanical seal.
- Check that the impeller is free.
- Open the valve.
- Check the project.
- Correct the electrical
connections.
- Measure the RPM with a
tachometer.
- Check the power supply.
- Remove foreign bodies.
- Remove foreign bodies.
- Remove foreign bodies.
- Check and repair the suction
pipe and shaft seal.
15
rev. 03/22
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