ENG
Operating Manual | Attachment and Installation Cooling Units | Standard Controller (SC) – 400 / 460 V, 3~ | 086100125 58/66
7.1.1 Error messages
The error numbers are not displayed in units with Standard Controllers. Using the ECoolPLANT software, it is possible to read
o
ut the error numbers on the computer.
Flashing of the red LED light on the controller card is not a fault indication or error message.
The red LED light indicates that the cooling unit is carrying voltage.
Error no. Fault/unit behavior Possible causes Remedial measures
Er00 LED: flashes Door contact:
The door contact circuit is
interrupted.
Close the door.
Connect the door contact
switch.
Bridge the door contact.
Check wiring.
Compressor: OFF
Evaporator fan (internal): OFF
Condenser fan (external): OFF
Fault signal contact:: closed
Er01 LED: flashes Pressostat tripped:
Too high pressure in the
refrigeration circuit.
The cooling unit cannot
dissipate the heat from the
refrigeration circuit.
Let the unit cool down.
Clean the fins of the heat
exchanger
(internal/external).
Check the function of the
condenser fan (external).
Compressor: OFF
Evaporator fan (internal): ON
Condenser fan (external): OFF
Fault signal contact:: Open
Er04 LED: flashes Phase sequence/phase
failure:
Failure of at least one
phase or phase sequence is
wrong (only in three-phase
units with cam
compressors).
Check field of rotation -
(right-hand field of rotation
is mandatory).
All phases must carry rated
voltage.
Compressor: OFF
Evaporator fan (internal): OFF
Condenser fan (external): OFF
Fault signal contact:: Open
Er05 LED: flashes Sensor 1 (TS1) defective.
According to the unit type,
replace sensor 1
(permanently soldered on
the controller card) or the
complete controller card.
Compressor: ON
Evaporator fan (internal): ON
Condenser fan (external): ON
Fault signal contact:: Open
Er07 LED: flashes Sensor 1 Maximum:
Maximum value of the
switch cabinet temperature
“Lit¯” (display) is reached or
exceeded.
The cooling unit cannot cool
the air in the switch cabinet
sufficiently.
Check settings of the
cooling unit.
Clean the fins of the heat
exchanger
(internal/external).
Check the function of the
evaporator fan (internal).
Check the refrigeration
circuit for spilled refrigerant
or leakage.
Install a cooling unit with a
higher cooling capacity if
necessary.
Compressor: ON
Evaporator fan (internal): ON
Condenser fan (external): ON
Fault signal contact:: Open
Tab. 15: Possible error messages
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