Spare Parts; Troubleshooting - Calpeda NCE EI Instrucciones De Uso

10 SPARE PARTS

10.1 Spare-parts request
When ordering spare parts, please quote the data stamped on the name-plate (type, date
and serial number).
The spare parts request shall be sent to CALPEDA S.p.A. by phone, fax, e-mail.

11. Troubleshooting

WARNING: Turn off the power supply before performing any operations.
OFF
Do not allow the pump or motor to run when dry even for a short period
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM LED SIGNAL
(1) LED lit
The pump
is noisy and
vibrating. LED lit
White LED
(2) flashing
The liquid is
circulating
noisily LED lit
(3) LED off
The circulator
does not start
while being
powered
Red LED
NCE. Rev. 5 - Operating Instructions
PROBABLE CAUSES
Suction pressure
insufficient, cavitation.
Deposits or solids in the
internal passages of the
impeller.
Air in the system
Delivery too high
Unsuitable power supply
Incorrect electrical
connections
Fuses burnt or faulty
Faulty pump
Overheating
Rotor blocked
Insufficient power supply
voltage.
POSSIBLE SOLUTIONS
Increase the suction pressure.
Dismantle the motor and clean
the impeller.
See paragraph 7.4 "Bleed process".
Reduce the rotation speed (see
paragraph 7.5 "Setting the pump
performance").
Make sure the mains frequency
and voltage are suitable for the
electrical characteristics given on
the plate.
Correctly connect the power
supply cable to the terminal
block
Replace the fuses, check the
electric power.
Replace the pump
Cool the pump and make sure it
starts again. Make sure the
liquid temperature and the
surrounding temperature are
within the indicated limits.
If the release procedure did not
work, remove the motor and
clean the rotor.
Make sure the mains frequency
and voltage are suitable for the
electrical characteristics
indicated on the plate.
Changes reserved.
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EN