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INFORMATION ON ALARMS:
During alarms, the beeper is activated and the display shows the message “ALL xx”.
The alarm message is alternated on the display even when the beeper has been silenced, until the alarm has
been cleared.
Alarm relays remain activated as long as the alarm is displayed.
In the case that more than one alarm has been activated, each one is alternately displayed.
When the beeper is activated, the operator can silence it by pressing the relative push-button, after which
the alarm can be cleared, by pressing the beeper reset button again.
Power failures will not erase current alarms.
List of other operating faults not indicated:
FAULT CAUSE SOLUTION
Compressor does not operate 1 - Overload switch has cut in 1 - Seek assistance from a service technician
2 - Power failure 2 - Check connection to power lines
Fans do not rotate 1 - Power failure 1 - Check connection to power lines
2 - Fan fault 2 - Seek assistance from a service technician
to replace fan
3 - Condenser fault 3 - Seek assistance from a service technician
to replace condenser
4 - Protective fuse faulty 4 - Seek assistance from a service technician
to replace fuse
Electronic panel does 1 - Power failure 1 - Check connection to power lines not
switch on
2 - Protective fuses broken 2 - Seek assistance from a service technician
to replace fuses
Compressor operates but 1 - Shortage of refrigerant gas 1 - Seek assistance from a service
does not cool cell technician
2 - Solenoid valve fault 2 - Seek assistance from a service technician
3 - Condenser is soiled 3 - Clean the condenser (see par. 4.2)