7 Operation
EN
32
Rittal enclosure cooling unit
7.6
List of system messages
System
code
System message
Optical
fibre
Alarm relay
(factory setting)
Description of the system message
A01
Door contact
Red
–
The door contact switch is reporting that the en-
closure door is open.
Please close the enclosure door.
Problem still persisting? In the Scan & Service app
you will find suggestions on how to rectify the
problem yourself.
A02
Interior overtem-
perature
Yellow
–
The measured interior temperature exceeds the
set alarm value for your cooling unit.
In the Scan & Service app you will find sugges-
tions on how to rectify the problem yourself. Alter-
natively, please contact the Rittal Service team.
A03
Filter warning
Yellow
–
The filter mat in your cooling unit is dirty.
Please clean or replace the filter mat.
Problem still persisting? In the Scan & Service app
you will find suggestions on how to rectify the
problem yourself. Alternatively, please contact the
Rittal Service team.
A04
Exterior overtem-
perature/under-
temperature
Yellow
–
Your cooling unit is being operated outside of the
admissible ambient temperature range (-20 °C…
+60 °C).
In the Scan & Service app you will find sugges-
tions on how to rectify the problem yourself. Alter-
natively, please contact the Rittal Service team.
A07
Leak
Red
X
Your cooling unit is reporting a lack of refrigerant
in the active refrigerant cycle.
In the Scan & Service app you will find sugges-
tions on how to rectify the problem yourself. Alter-
natively, please contact the Rittal Service team.
You will need to manually acknowledge this sys-
tem message (see section 7.4.5 "Manually ac-
knowledge a system message").
A09
External fan failure
Red
X
The fan in the external circuit of your cooling unit
is defective.
Please contact the Rittal Service team.
A10
Internal fan failure
Red
X
The fan in the internal circuit of your cooling unit is
defective.
Please contact the Rittal Service team.
A11
Compressor fault
Red
X
The compressor in your cooling unit is reporting
an error.
In the Scan & Service app you will find sugges-
tions on how to rectify the problem yourself. Alter-
natively, please contact the Rittal Service team
A12
Condenser sensor
failure
Red
X
The "Condenser" sensor in your cooling unit is re-
porting a failure.
Please contact the Rittal Service team.
A13
External tempera-
ture sensor failure
Red
X
The "External temperature" sensor in your cooling
unit is reporting a failure.
Please contact the Rittal Service team.
Tab. 7:
List of system messages
