8
PROBLEM POSSIBLE CAUSE REMEDY
THE ELECTROPUMP DOES NOT PUMP WATER, THE
MOTOR DOES NOT RUN
1) No power. Verify the presence of voltage.
2) Motor protection tripped. Verify the cause and reset the switch. If the thermal circuit breaker has tripped wait
for the system to cool down.
3) Defective condenser. Replace the condenser.
4) Shaft blocked. Verify the cause and unblock the electropump.
THE MOTOR RUNS BUT THE ELECTROPUMP DOES NOT
PUMP LIQUID
1) The pump is sucking air. Make sure that:
• The joints are airtight
• The level of liquid has not dropped below the minimum priming level
• The foot valve is airtight and is not blocked
2) The pump rotates in the wrong direction Reset the direction of rotation.
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.
Check the voltage on the power supply cable leads.
2) A solid object is blocking the impellers. Dismantle the electropump and clean it.
3) The liquid is too thick. Change the type of electropump.
MAINTENANCE AND TROUBLESHOOTING
CHAPTER 6
Before doing any operation, make sure machine is disconnected from electric power supply.
Before doing any operation, make sure machine is disconnected from electric power supply.
DANGER - ELECTRIC SHOCK RISK
GB
• Under normal conditions MULTINOX-
XC / MULTINOX / MULTINOX-VE / MCX
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 (e.g. an
entire season) it should be emptied
completely, rinsed with clean water
and put in a dry place
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