Trouble Shooting - PYD Electrobombas CX Serie Manual De Instalación Y Mantenimiento

OPERATING AND MAINTENANCE MANUAL
SERIE CX
High effi ciency motor/ 2pole

10. TROUBLE SHOOTING

Before removing the terminal box cover and before any removal/ dismantling of the pump. Make
sure the electricity supply has been switched off and that it cannot be accidentally switchde on.
FAULT
Motor does not run
when started
Motor starter over-
load trips out imme-
diately when supply
is switched on
Motor starter
overload trips out
occasionally.
www.proindecsa.com / [email protected]
CAUSE
- Supply failure.
- Fuses are blown.
- Motor starter overload has tripped
out.
- Thermal protection has tripped
out.
- Main contacts in motor starter
are not
making contact or the coil is faulty.
- Control circuit is defective.
- Motor is defective.
- One fuse/automatic circuit
breaker is blown.
- Contacts in motor starter overload
are faulty.
- Cable connection is loose or
faulty.
- Motor winding is defective.
- Pump Mechanically blocked.
- Overload setting is too low.
- Overload setting is too low.
- Low voltage at peak times.
18
SOLUTION
- Connect the electricity supply.
- Replace fuses.
- Reactivate the motor protection
- Reactivate the thermal protec-
tion.
- Replace contacts or magnetic
coil.
- Repair the control circuit.
- Replace the motor.
- Cut in the fuse
- Replace motor starter contacts
- Fasten or replace the cable
connection
- Replace the motor
- Remove the mechanical bloc-
king of the pump.
- Set the motor starter correctly.
- Set the motor starter correctly.
- Check the electricity supply.