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83001602.Kf
Error
code
Display view
Type of message
Message description
Cause of the message
Troubleshooting
Reaction of the chiller
527
AI Temp. cooling water
off
Group warning
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,
Testing the sensor on the basis
of the sensor characteristic curve
528
AI Pressure cooling
water on
Group warning
Measured value of the
analogue input is
outside the valid
measuring range
Sensor defective,
sensor break
or sensor short circuit
Check the electrical connections
of the sensor,
check the sensor using the
sensor characteristic curve
529
AI Pressure cooling
water off
Group warning
Measured value of the
analogue input is
outside the valid
measuring range
Sensor defective,
sensor break
or sensor short circuit
Check the electrical connections
of the sensor,
check the sensor using the
sensor characteristic curve
531
AI conductivity
Group fault alarm
from Version 2.60
Measured value of the
analogue input is
outside the valid
measuring range
Sensor defective,
sensor break
or sensor short circuit
Check the electrical connections
of the sensor,
check the sensor using the
sensor characteristic curve
all components continue to run
EV demineralization closes.
Alarm is saved, (From V.2.60)
Manual reset.
591
AI coding resistor
not in group fault
alarm,
omitted from Version
2.60
Coding resistor is
missing
Coding resistor is missing
Check coding resistor
Chiller only continues to run with one
compressor.
Manual rest. (Up to V. 2.59)
592
Coding changed
Group fault alarm,
omitted from Version
2.60
Coding error
The coding resistor measures a
different encoding since the
last switch-on (number of
compressors)
Coding resistor defective, not
connected, check the contact
Chiller only continues to run with one
compressor.
Alarm is saved.
Manual reset. (Up to V. 259)
602
DI phase monitoring
Group fault alarm
from Version 2.60
Phase monitoring has
tripped
Error in relation to phase
sequence, phase failure,
undervoltage and asymmetry
Check feed
Chiller switches off immediately.
Alarm is saved, (From V.2.60)
Manual reset.
