7 Operation
EN
34
Rittal enclosure cooling unit
A29
External sensor
Red
X
The external sensor of your cooling unit is not
connected or indicates a malfunction. Please
check the connection or choose a different con-
trol mode.
A30
Check parameters
Yellow
–
The configuration parameters of the cooling unit
cannot be loaded during startup.
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.
A31
Inverter fault
Red
X
A hardware problem has been detected in the
power electronics.
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.
A32
Emergency mode
active
Red
–
Your cooling unit is only operating at 50% perma-
nent cooling output due to a previous error.
Please contact the Rittal Service team.
A33
Compressor
phase
Red
X
The compressor in your cooling unit is reporting
an error.
Please contact the Rittal Service team.
A34
Overload
Yellow
X
An excessive current flow has been detected in
the compressor.
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.
A35
Alarm: Active cool-
ing function
Red
–
The cooling function of your cooling unit has been
interrupted due to a current or past malfunction.
Check and rectify the cause or contact the Rittal
Service team. In some cases, where multiple er-
rors have occurred within a short period of time,
you may need to acknowledge them manually
once the cause has been rectified (see sec-
tion 7.4.5 "Manually acknowledge a system mes-
sage").
System
code
System message
Optical
fibre
Alarm relay
(factory setting)
Description of the system message
Tab. 7:
List of system messages
