55
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-10
Low Suction
Pressure
Note: Occurrence
of more than 3
times E-08 at 1
hour interval.
It only turns off the faulty unit.
The system won’t reset automatically.
With the unit running measure suction pressure.
Check pressure switch actuation. Replace
the component as necessary. Check/correct
leaks/obstructions in the low circuit.
Evaporator cleaning. Replacement of
fi lter drier. Check refrigerant charge.
E-11
High Discharge
Pressure
Note: Occurrence
of more than 3
times E-09 at 1
hour interval.
It only turns off the faulty unit.
The system won’t reset automatically.
With the unit running, measure
discharge pressure.
Check pressure switch actuation.
Replace the component as necessary.
Check / correct blocking obstructions
in the high/condenser circuit.
Condenser cleanliness. Check
refrigerant charge.
E-12
Error/failure in
communication
between control
and unit
No unit in the system works.
Check and correct communication
between the unit and control
Check for any cable breaks or loose connection.
E-13
High discharge
temperature of
compressor 1
I only turns off the faulty compressor.
Check/correct:
Discharge temperature sensor of compressor 1.
Also check through the condenser
middle temperature sensor (CMCT)
Condenser fan motor speed.
Refrigerant charge. Condenser cleanliness.
Obstruction inside the cooling circuit
(plugged fi lters, valves, etc.)
E-14
High discharge
temperature of
compressor 2
I only turns off the faulty compressor.
Check/correct:
Discharge temperature sensor of compressor 2.
Also check through the condenser
middle temperature sensor (CMCT)
Condenser fan motor speed.
Refrigerant charge. Condenser cleanliness.
Obstruction inside the cooling circuit
(plugged fi lters, valves, etc.)
E15
DIPs settings
No unit in the
system starts.
Only the unit with
error won’t start.
Turn off the unit with error.
Note: For the Master unit it is important
to wait at least 1 minute after the power is
turned off , the time to discharge the residual
energy from the capacitors (Leds fl ashing).
Check/correct the DIPs settings.
