34
Alarm codes (cont.)
Code Description
Possible cause
Action taken
Reset type
10101 Free Cooler Process Failure
Dry cooler fault
None
Automatic, if operating
conditions return to normal
15046 FreeCooler Water Loop Thermistor Failure Defective thermistor
Free cooling (dry cooler)
mode is stopped
Automatic, if thermistor
reading returns to normal
15047 FreeCooler Leaving Water Thermistor Failure As above
As above
As above
15048 FreeCooler OAT Sensor Failure As above
OAT thermistor reading is
used instead of Dry Cooler
OAT reading
As above
Service and factory
7001
Illegal configuration
No factory
configuration
Unit cannot be started
Automatic, if configuration is
provided
90nn
Master/Slave configuration error
Configuration failure
Master/slave operation is
disabled and the unit
returns to the stand-alone
mode
Automatic, if master/slave
configuration returns to
normal or the unit returns to
the standalone mode
Master/Slave failure
13nnn 001: Circuit A Loss of charge
002: Circuit B Loss of charge
003: Water loop size warning
004: Maintenance servicing required
005: F-Gas Scheduled Check required
Servicing action
required / Contact
Manufacturer Service
Agency
Depending on the severity
of the alarm, the unit may
continue to operate or the
unit shuts down
Manual
Condenser water loop failure (111-nn)
11102 Condenser water loop failure - zero error Calibration failed
Unit shuts down
Automatic
11103 Condenser water loop failure - water press too low Entering water pressure
under 60 kPa
Unit shuts down
Automatic (6 times within 24
hours); otherwise, manual
11104 Condenser water loop failure - pump not started Too low or high water
pressure reading
Unit shuts down
As above
11106 Condenser water loop failure - pump overload Water loop pressure
drop too low
Unit shuts down
Automatic
11107 Condenser water loop failure - switch fail Switch fault
Unit shuts down
Automatic (6 times within 24
hours); otherwise, manual
11108 Condenser water loop failure - press cross Pressure sensors
crossed
Unit shuts down
As above
Cooler water loop process failure (112-nn)
11202 Cooler water loop process failure - zero error Calibration failed
Unit shuts down
Automatic
11203 Cooler water loop failure - water press too low Entering water pressure
under 60 kPa
Unit shuts down
Automatic (6 times within 24
hours); otherwise, manual
11204 Cooler water loop failure - pump not started Too low or high water
pressure reading
Unit shuts down
As above
11206 Cooler water loop failure - pump overload Water loop pressure
drop too low
Unit shuts down
Automatic
11207 Cooler water loop failure - switch fail
Switch fault
Unit shuts down
Automatic (6 times within 24
hours); otherwise, manual
11208 Cooler water loop failure - press cross Pressure sensors
crossed
Unit shuts down
As above
Device failure
19nnn Cooler Water pump Variable Speed Failure Speed controller fault
Unit shuts down
Automatic, if detected fault is
fixed
20nnn Condenser Water pump Variable Speed Failure As above
As above
As above
57001 SIOB 1 Low Voltage Failure
Unstable electrical
supply or electrical
issue
Unit shuts down
Automatic (if water pressure
reading returns to normal and
the alarm occurred up to 6
times in the last 24h);
otherwise, Manual
57002 SIOB 2 Low Voltage Failure
As above
As above
As above
57020 Main EXV stepper motor failure - cir A EXV motor fault
Circuit A shuts down
Manual
57021 Main EXV stepper motor failure - cir B EXV motor fault
Circuit B shuts down
Manual
NOTE: When the “action taken” given in the table above is defined as “none”, it means that the alarm message is
displayed, but no action is taken on the unit.
