X-POWER PX Series, Use And Maintenance Instructions

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9. TROUBLESHOOTING
Faults Probable causes Remedies
1. The electric pump
1.1 The selector switch is set 1.1 Turn to the ON position.
fails to start.
to the OFF position.
1.2 The motor in not powered. 1.2 Check that the electrical
equipment is in a good condition.
Check whether the equipment
is receiving power.
1.3 The automatic monitoring 1.3 Wait until the correct operative
devices (level switch, internal conditions have been restored or
thermic-amperometric
check the efficiency of the
protection, etc.) are not enabling automatic devices.
operation.
2. The overload relay or
2.1 AII motor phases are not being 2.1 Check the condition of the
internal thermic-
fully powered (threephase electrical equipment. Check the
amperometric
version only). power supply voltage rating.
protection (single
2.2 Power demand is unbalanced
2.2 Check the unbalance.
phase version only)
amongst the phases lf necessary, send the pump to
goes off during
(threephase version only). an authorized after sales
operation.
service center.
2.3 The motor turns in the wrong
2.3 I nvert two of the three phases.
direction (threephase version 2.4 Compare the setting amperage
only). value with the one on the
2.4 Wrong overload relay setting.
pump data plate.
2.5 The power supply voltage 2.5 Change the pump or change
rating fails to correspond with the power supply.
that of the electric pump.
2.6 The electric pump fails to turn 2.6 Check the hydraulics. Immerse
freely since there are points that the pump in lukewarm water if
rub. it is blocked by ice. lf necessary,
send the pump to an authorized
after-sales service center.
2.7 Pumped fluid excessively 2.7 Check whether the right electric
viscous and/or dense. pump has been chosen.
2.8 High temperature in the
2.8 Protect the electric control
electric panel. panel from the sun and heat.
2.9 Excessive electric motor 2.9 Remove the incrustations from
temperature.
the cooling surfaces of the motor.
Check whether the right
pump has been chosen since:
-the temperature of the fluid
may be excessive;
-the liquid may be at a
persistently low level and fail to
cover the motor.
2.1 O Damaged motor windings 2.1 O Check the condition of the
owing to the presence of liquid. motor windings. lf necessary,
send the electric pump to an
authorized after-sales service
center.
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