8
• Under normal conditions DOMINATOR
electropumps do not need any type
of maintenance. In order to avoid
possible failures, it is advisable to
periodically check the pressure
supplied and current absorption.
• A decrease in pressure is a symptom
of wear. An increase in current
absorption is a sign of abnormal
mechanical friction in the pump
and/or motor.
• If the electropump is not going to be
used for long periods of time it should
be emptied completely, rinsed with
clean water and put in a dry place.
MAINTENANCE AND TROUBLESHOOTING
CHAPTER 6
Make sure the machine is disconnected from electric power supply, before performing servicing operation.
The power cord must be replaced by the manufacturer or the Customer service, using special tools.
DANGER - ELECTRIC SHOCK RISK
DANGER - ELECTRIC SHOCK RISK
GB
• If the sucked water is not perfectly
clean, it may be necessary to clean
the filter with a steel brush to scrape
the dirt accumulated on the external
surface.
• It is also possible to clean the internal
section of the filter.
• Loosen the screw that fixes the filter
to the body of the electropump and
remove it.
• Scrape the dirt with a steel brush and
rinse it with clean water.
• If this is not sufficient, have the
hydraulic parts cleaned by an
authorised centre.
CLEANING THE FILTER
If the problem cannot be eliminated after carrying out the above-described operations contact the closest service centre.
PROBLEM POSSIBLE CAUSE REMEDY
THE ELECTROPUMP DOES NOT PUMP WATER, THE
MOTOR DOES NOT RUN
1) No power. 1) Check the presence of voltage and if the plug is plugged in properly.
2) Motor protection tripped. 2) Verify the cause and reset the switch. If the thermal circuit breaker has tripped wait
for the system to cool down.
3) Defective condenser. 3) Replace the condenser.
4) Shaft blocked. 4) Verify the cause and unblock the electropump.
THE MOTOR RUNS BUT THE ELECTROPUMP DOES NOT
PUMP LIQUID
1) The pump is sucking air. 1)
• Make sure that the joints are airtight.
• Check that the level of liquid has not dropped below the minimum priming level.
2) The pump rotates in the wrong direction 2) Reset the direction of rotation.
3) Suction grid blocked. 3) Clean the suction grid.
4) Check valve blocked. 4) Clean or replace valve.
THE ELECTROPUMP STOPS AFTER RUNNING FOR
A SHORT PERIOD OF TIME BECAUSE ONE OF THE
THERMAL MOTOR CIRCUIT BREAKER TRIPS
1) The power supply does not conform with the data
on the nameplate.
1) Check the voltage on the power supply cable leads.
2) A solid object is blocking the impellers. 2) Take the electropump to an authorised centre so that it can be disassembled and
completely cleaned.
3) The liquid is too thick. 3) Change the type of electropump.
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
Distributed in NZ By:
Freephone 0508 634 34
1
7 Monier Pl, Mt Wellington, Auckland 1060, New
Zealand
