60
6. Maintenance & Repair (cont.)
ERROR
CODE
TYPE OF ERROR
CONSEQUENCE of ERROR
only on Chiller 1 (Master)
CONSEQUENCE
of ERROR only
on Chiller 2
to 8 (Slaves)
RECOMMENDED ACTIONS
E-44
High
temperature in
the compressor
board inverter
module.
Models 380/440V:
Inverter compressor
won’t start
If the compressor is
running, it will shut
down, returning after the
heatsink temperature
has been reduced.
NA
Check/correct:
Heatsink temperature (maximum 80°C).
Voltage and current on the
board. If the problem is in the
sensor, replace the board.
Error on the
compressor
board
(overload).
Models 220V:
It only
turns off the inverter
compressor
, resetting
after 2 min.
NA
Check/correct:
Board supply voltage. Ground conditions
Replace the board as required.
E-45
Error in the
Inverter
module.
Models 380/440V:
It only turns off the
inverter compressor,
resetting after 2 min.
NA
Check/correct:
Board supply voltage.
Connection on the board.
Ground conditions
Replace the board if required.
Error in the DC
bus voltage.
Models 220V: Shuts off
the Inverter compressor
NA
Check/correct:
Supply voltage on board Connection
between board and compressor
Voltage on components -
reactor and capacitor
Reference range: 180VDC to 380VDC
If necessary replace the board
E-46
Error in the
compressor
board
Models 380/440V: Turns
off the It only turns off
the inverter compressor,
resetting after 3 min.
NA
Check/correct:
Supply voltage on the board
Connection on board
Ground conditions
Replace the board if required.
Low supply
voltage on the
compressor
board.
Models 220V:
Inverter compressor won’t
start. If the compressor
is running, it will go off .
NA
Check/correct:
Supply voltage on the board
Minimum voltage 190 VAC
E-47
High current
on Inverter
compressor
Models 380/440V:
It
only turns off the
inverter compressor
,
resetting after 2 min.
NA
Check/correct:
Compressor supply voltage.
Phase balance.
Connection between board
and compressor. Bad contact
in some component.
High discharge pressure Compressor
locked out Failure in the fan system.
Excessive refrigerant charge.
Replace the board if required.
No supply
voltage on the
compressor
board.
Models 220V:
It only
turns off the inverter
compressor.
NA
Check/correct:
Board supply voltage. Ground conditions
Replace the board if required.
