EBARA HYDROSTATION, Operating And Maintenance Manual, Page: 12 / 152

12
EN
b) Start the pump two or three times to check system conditions;
c) Restrict the delivery to cause a rapid pressure increase for a
few times;
12.3 STOPPING
a) Gradually interrupt water circulation in the delivery section to
avoid overpressure in the piping and pump caused by water
hammering;
b) Cut off the power supply.
c) Make sure that the noise, vibration, pressure and electrical
voltage levels are normal.
13. MAINTENANCE AND REPAIRS
We recommend periodically checking that the pump is working
correctly; pay particular attention to any abnormal noise or vibration
and, any mechanical seal leaks.
When the pump remains inactive for a long period, it should be
emptied completely, removing the discharge and filling caps.
13.1 TROUBLESHOOTING
DISPLAYED FAULT CAUSE REMEDY
THE PUMP DOES
NOT WORK The
motor doesn’t
turns
No electricity
Check the electrical
supply meter
Plug not inserted Check the connection
to the power supply
Float sticking
Check that the float
reaches the level ON
Thermal
protection
activated
It reactivates
automatically
THE PUMP DOES
NOT WORK The
motor turns
Decrease in the
line voltage
Wait for voltage to
return to normal
Suction filter / hole
blocked
Clean the filter / hole
Foot valve blocked Clean the valve and
check its operation
Pump not primed
Prime the pump Check
any delivery non-return
valves Check the liquid
level
THE PUMP WORKS
with a reduced
flow rate
System
undersized
Re-examine the system
System dirty
Clean the piping,
valves, filters
Leaks from piping Check the joints
Pressure too high Recheck the system
Water level too
low
Switch off the pump or
immerse the foot valve
THE PUMP
STOPS AFTER
WORKING FOR
BRIEF PERIODS
Thermal protection
intervention
Liquid
temperature too
high
The temperature
exceeds the technical
limits of the pump
Internal fault
Contact the nearest
retailer
THE PUMP
VIBRATES Or is
too noisy du - ring
operation
Flow rate too high Reduce the flow rate
Cavitation
Contact the nearest
retailer
Irregular piping Fix in a better way
Incorrect priming Bleed the pump and/or
fill it again
DISPLAYED FAULT CAUSE REMEDY
THE PUMP
VIBRATES Or is
too noisy du - ring
operation
Foreign bodies
sliding along the
motor fan
Remove the foreign
bodies
13.2 ALARM CODES
AL. DESCRIPTION REMEDY
E1 Temperature alarm
Automatic reset once the tempera-
ture drop down
E2 Over range main
Voltage
Check the main voltage / Automa-
tic restar once the Voltage come
back in the range
E3 Overvoltage
Blocked motor / 3 attemps of
automatic restart
E4 Phases short-circuit
Contact the nearest retailer
E6 Failed pressure sensor Cheange the pressure sensor
H1 Dry run / suction
issues
Check the water availability
H2 Hourly restarts over
limit
Reset
C1 Communication issues
between devices
Check the proper connecction
between devices
14. DISPOSAL
This product falls within the scope of Directive 2012/19/EU
regarding the management of electrical and electronic equipment
waste (WEEE). Electronic-electrical equipment must not be
disposed of with domestic waste as it is made of various materials
that can be recycled at the appropriate facilities. Inquiries should
be made through the municipal authorities regarding the location of
the ecological platforms that receive products for disposal and their
subsequent correct recycling. Furthermore, it is worth remembering
that, upon purchase of an equivalent appliance, shops are obliged
to collect the product for disposal free of charge. This product is
not potentially dangerous for human health and the environ - ment,
since it does not contain harmful substances as per Directive
2011/65/ EU (RoHS), yet if abandoned in the environment it has a
negative impact on the ecosystem. Read the instructions carefully
before using the appliance for the first time. It is recommended that
you do not use this product for any purpose other than that for which
it was intended; there is danger of electric shock if used improperly.
The crossed-out bin symbol found on the appliance label indicates
the com - pliance of this product with the regulations regarding
electrical and electronic equipment waste. Abandoning the
appliance in the environment or its illegal disposal is pun - ishable
by law. Specific cases are, however, indicated in the “DISPOSAL”
chapter in PART 2. This symbol on the pump means that it cannot
be disposed of with household waste. According to Article 9(1)(i) of
the Waste Framework Directive 2008/98/EC and to the 1907/2006
REACH regulation, all EBARA products have been notified to the
European Chemicals Agency (ECHA). To consult the SCIP Number
with related information on the safe use of the product see section
“Company Certifications” on the website www.ebaraeurope.com