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CAUTION:
Do not attempt to remove LED panel from circulator. Serious damage to circulator electronics may result.
ATTENTION:
N’essayez pas de retirer le panneau de LED du circulateur. Des dommages sérieux à l’électronique
du circulateur peuvent en résulter.
FAULTS
CONTROL PANEL
CAUSES
REMEDIES
The circulator
is noisy
LED on
Suction pressure is
insufficient — cavitation
Increase the system suction pressure
within the permissible range.
LED on
Presence of foreign bodies
in the impeller
Disassemble the motor
and clean the impeller.
Loud noises of
water circulation
Flashing
white LED
Air in the system.
Pump may be air-bound
Vent the system. Repeat
fill and purge steps.
LED on
The flow is too high
Reduce the pump speed.
Circulator is not running
although the electrical
power supply is
switched on
LED off
Lack of power supply
Verify voltage value of the electric plant.
Verify the connection of the motor.
One fuse in the
installation is blown
Verify the fuses of the pump.
The circulator is defective
Replace the pump.
Overheating
Let the pump cool down for some
minutes. Then try to re-start it. Verify that
the water and ambient temperature are
within the indicated temperature ranges.
LED red
The rotor is blocked
Disassemble the motor and clean the
impeller. See unlocking procedure below.
Insufficient supply voltage
Verify that the power supply
matches the data on the
name plate.
Building does
not get warm.
LED on
The circulator performance
is too low
Increase the suction head.
Increase speed or P setting.
7. Troubleshooting the error codes:
Listed below are potential diagnostic error codes which will appear on the
LED display in case of a malfunction.
Unlocking Procedure:
A red light in the LED indicates the circulator rotor is blocked or sticking. Turn the selector to the position
MAX, disconnect and connect power supply to start the automatic release process. The circulator makes 100 attempts to restart
(process lasts approximately 15 minutes). Every restart is signalled by a short flash of white LED light. If the blocking is not removed
through the automatic release process after 100 attempts to restart, the circulator goes into standby and the LED remains solid red.
Perform the manual unblocking steps described below.
1. Disconnect power supply - the warning light switches off.
2. Close both isolating valves and allow cooling. If there are no shut-off devices,
drain the system so that the fluid level is beneath that of the circulator.
3. Loosen 4 motor bolts. Remove motor from casing. Carefully pull the rotor/impeller from the motor.
4. Remove impurities and deposits from the impeller and casing.
5. Reinsert the rotor/impeller into the motor.
6. Set the dial to the MAX position.
7. Connect power supply. Check for impeller rotation.
8. If the circulator still doesn’t run it will need to be replaced.
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