Instructions
for Installer,
Maintenance Engineer
and final User
SINFONIA
Rev. 00
H4345 - 00
02/2013
Page 26 of 41
6.5 Description of the main signals and alarms
The error codes are shown on the display alternating with the temperature gauge.
ERROR
DESCRIPTION
ES
The compressor has a timing delay when starting, therefore the LED of the
compressor on the display starts to flash.
E0
Still or flashing means an adjusting probe error:
• probe not working, the probe signal is interrupted or in short circuit:
• probe is not compatible with the instrument;
The E0 alarm signal is stable if it is the only alarm present (the temperature value is
no longer shown), it flashes if there are other alarms or if the second probe is shown
E1
Flashes evaporator probe error:
• probe not working, the probe signal is interrupted or in short circuit;
• probe is not compatible with the instrument;
EE
Visualized during functioning or activation
Error in reading of the machine parameters. See memorised data errors.
EF
Visualized during functioning or activation
Error in reading of the working parameters. See memorised data errors.
ED
The last defrosting finishes when exceeding the maximum time.
The indication disappears if the next defrost is finished correctly.
DF
Defrosting in course:
• it is not an alarm signal but an indication that the instrument is doing a defrosting.
DISPLAY
BLINKS
The control unit display and all the leds are flashing:
• indicates that the door is open, or that the door switch is not working correctly
• it is activated when the door remains open for more than one hours
6.6 Function
When switching on the control unit for the first times there will be a delay of three minutes in the compressor
and evaporator fan starting .
During normal working, the compressor will stop only after reaching the set point temperature and the
evaporator fans will work always.
When opening the door (if there is a door switch) both the compressor (if working) and fans will stop.
When closing the door, the fans will start immediately, while the compressor will have a delay of three
minutes from the last switching off, even if the door is closed before.
The cooling unit is controlled by various parameters inserted in the software of the control unit and
unchangeable by the User, this avoids possible and unwanted modifications to the same parameters, that
could cause a malfunctioning of the cooling unit. In any case, for any particular needs it is possible to contact
the technical assistance service that will assist you in various problems.
