EN - 43
ENGLISH
Error Code
(1) When the rotary switch (knob) is at [OPERATION] position, the digital display on the control PCB alternately
displays low pressure, high pressure and error code (E ***).
< Error Code Table >
Error code
Meaning
Cause
Method of Action (Listed)
E01
High pressure
abnormal
(7th time) or High
Pressure Switch
Activated
High pressure increased to abnormal level.
(1) Check the cause of high pressure abnormality.
(2) Check if abnormality exists in the high pressure
sensor.
E03
Discharge gas
temperature abnormal
(3rd time)
Abnormality stopping caused by discharge
gas temperature exceeding 118 °C occurred 3
times in 2 hours.
Follow the procedure shown in “Failure diagnosis of
abnormal discharge gas temperature”.
(1) Investigate the cause of high discharge gas
temperature.
(2) Check the connection of “2P6 Discharge Connector” of
the control PCB.
(3) Check the resistance value of the discharge gas
temperature sensor.
E04
Discharge gas temp
sensor abnormal
Discharge gas temperature sensor became
abnormal (open).
(1) Check the connection of “2P6 discharge connector” of
the control PCB.
(2) Check the resistance value of the discharge gas
temperature sensor.
E05
Low pressure sensor
abnormal
Low pressure sensor became abnormal
(open).
(1) Check the connection of “3P1 low pressure connector”
of the control PCB.
(2) Check the output voltage of the low pressure sensor.
E06
High pressure sensor
abnormal
High pressure sensor became abnormal
(open).
(1) Check the connection of “3P3 high pressure
connector” of the control PCB.
(2) Check the output voltage of the high pressure sensor.
E07
Suction gas temp
sensor abnormal
Suction gas temperature sensor became
abnormal (open).
(1) Check the connection of “2P5U inlet connector” of the
control PCB.
(2) Check the resistance value of the suction gas
temperature sensor.
E10
Discharge gas
temperature abnormal
(1st to 2nd time)
Discharge gas temperature exceeded 118 °C
and caused abnormality stop.
Or discharge temp sensor shorted.
Follow the procedure shown in “Failure diagnosis of
abnormal discharge gas temperature”.
(1) Investigate the cause of high discharge gas
temperature.
(2) Check the connection of “2P6 discharge connector” of
the control PCB.
(3) Check the resistance value of the discharge gas
temperature sensor.
E18
Inverter
communication
abnormal
No serial communication signals between
“Control PCB” and “Inverter-PCB“.
Check the communication line between “2P11INV
connector” of the control PCB and “CN14 connector” of the
inverter-PCB.
E19
Communication
abnormal
No controller signal exist in communication.
(1) Check the communication line (“5P2, 5P3 connector”
of the control PCB)
(2) Set the communication refrigeration machine No. other
than “0”.
E23
Ambient temp sensor
abnormal
Ambient temperature sensor became abnormal
(open).
(1) Check the connection of “2P1 ambient connector” of
the control PCB.
(2) Check the resistance value of the ambient temperature
sensor.
E27
Gas cooler fan motor
abnormal
(1st to 9th time)
Gas cooler fan motor became abnormal.
(Fan rotation speed largely deviated from the
command rotation speed.)
(1) Check fan locked or dismantled.
(2) Check connection of “CN007 connector” of the
inverter-PCB.
E28
Gas cooler fan motor
abnormal
(10th time)
Gas cooler fan motor became abnormal.
(Fan rotation speed largely deviated from the
command rotation speed.)
(1) Check fan locked or dismantled.
(2) Check connection of “CN007 connector” of the
inverter-PCB.
Failure Diagnosis
01̲OCU-CR200VF5.indd 43
01̲OCU-CR200VF5.indd 43
2018/12/28 15:17:14
2018/12/28 15:17:14
