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83001602.Kf
Error
code
Display view
Type of message
Message description
Cause of the message
Troubleshooting
Reaction of the chiller
389
Pressure cooling water
On Max STOP
Group fault alarm
Pressure cooling water
inlet at the heat
exchanger is too high
0
0
0
390
Pressure cooling water
On Min STOP
Group fault alarm
Pressure cooling water
inlet at the heat
exchanger is too low
0
0
0
501
AI temp. inlet (VP)
Group warning
from Version 2.60
Sensor defective,
sensor break
or sensor short-circuit
Sensor defective,
sensor break
or sensor short-circuit
Check electrical connections of
the sensor,
check sensor using the
characteristic curve
Alarm is saved, (From V.2.60)
Manual reset.
502
AI temp outlet
Group fault alarm
from Version 2.60
Sensor defective,
sensor break
or sensor short-circuit
Sensor defective,
sensor break
or sensor short-circuit
Check electrical connections of
the sensor,
check sensor using the
characteristic curve
All components continue to run.
If the temp. inlet sensor is functional, it
is switched to this sensor and the
setpoint is increased by 6K.
Alarm is saved, (From V.2.60)
Manual reset.
503
AI temp outlet 2
Group fault alarm
from Version 2.60
Sensor defective,
sensor break
or sensor short-circuit
Sensor defective,
sensor break
or sensor short-circuit
Check electrical connections of
the sensor,
check sensor using the
characteristic curve
Pump 1 and compressor continue to
run,
Cold water circuit 2 is blocked,
Alarm is saved, (From V.2.60)
Manual Reset.
504
AI temp. system return
Group fault alarm
from Version 2.60
Measured value of the
analogue input outside
the valid measuring
range
Sensor defective,
sensor break
or sensor short circuit
Check the electrical connections
of the sensor,
check sensor using the
characteristic curve
Free cooling is blocked.
All other components continue to run,
alarm is saved, (from V.2.60)
manual reset.
505
AI ambient temp.
Group fault alarm
from Version 2.60
Measured value of the
analogue input outside
the valid measuring
range
Sensor defective,
sensor break
or sensor short circuit
Check the electrical connections
of the sensor,
check sensor using the
characteristic curve
Free cooling is blocked.
All other components continue to run,
alarm is saved, (from V.2.60)
manual reset.
