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on again, by using the
8.2
Tilt sensor alarm
Before tilting the cab of the vehicle, the air conditioner must be switched off.
In any case, the unit is equipped with a safety device which shuts down the AC unit
when the cab is tilted; this is indicated by the
the cab has been brought back into position, the alarm stops, the
and the air conditioner can be switched on, by pushing the
8.3
Refrigeration circuit alarms
The unit detects errors due to particular critical situations, and highlights them on the
control panel display. The error codes are listed in the following table.
Code
E.001
E.002
E.004
E.008
E.016
Several errors occurring together are highlighted with their corresponding error codes
added together: for example, 'cabin temperature sensor failure' and ' internal error in
communicating with the compressor' are indicated via code E009.
8.4
Compressor alarms
The unit detects errors due to particular critical situations with the electronic module
of the unit's two compressors, and highlights them on the control panel display. When
there is a compressor alarm, the
code. The error codes are listed in the chart below. The letters 'A' or 'b' in front of each
code identify which of the two compressors has the problem (note: the compressors
are identified by special stickers).
8.5 Low outside temperature alarm
If the outside temperature is lower than +3 °C, the air conditioner is not able to
guarantee the correct operation and performance. For this reason, when the air
conditioner is switched on, the control unit checks the outside temperature and if this
is less than + 3°C, the display will show the "LO" alarm message for a few seconds and
then the air conditioner will switch off.
button.
Cabin temperature sensor failure or the temperature is off the scale
Defrost temperature sensor failure (only HP model)
External environment temperature sensor failure (only HP model)
Internal error in communicating with the compressor
Serial communication time out (cable disconnected)
LED lights up and the display shows the alarm
Code
048 ... 063
064 ... 079
Compressor electronic module temp.
080
Other codes
LED lighting up. 20 minutes after
Error Description
Error Description
Compressor start error
Compressor overload
alarm
Individual alarms
LED goes out
button.
31
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