41
3P477778-7G
English
Malfunction code
Contents
Solution
Main
code
Sub code
Master/sub 1
E3
01/03
•
High pressure switch is activated.
(S1PH)-A1P (X2A)
•
High pressure switch connectors are detached.
-A1P (X2A, X3A, X4A)
•
Check stop valves situation or abnormalities in
(field) piping or airflow over air cooled coil.
•
Securely connect each connector. Refer to the wiring
diagram attached to the back of the control box cover.
02/04
•
Stop valves are closed.
•
Refrigerant overcharge.
•
Open stop valves.
•
Check refrigerant amount and recharge.
13/14
Liquid pipe stop valve is closed.
Open liquid pipe stop valve.
18
•
Stop valves are closed.
•
Refrigerant overcharge.
•
Open stop valves.
•
Check refrigerant amount and recharge.
E4
01/02
Low pressure malfunction:
•
Stop valves are closed.
•
Refrigerant shortage.
•
Reverse connection of high/low pressure gas pipe
and suction gas pipe of Branch Selector unit.
•
Open stop valves.
•
Check refrigerant amount and recharge.
E9
01/05
Electronic expansion valve malfunction
(Y1E)-A1P (X21A)
Check connection on printed circuit board or actuator.
03/06
Electronic expansion valve malfunction
(Y2E)-A1P (X22A)
Check connection on printed circuit board or actuator.
04/07
Electronic expansion valve malfunction
(Y3E)-A1P (X23A)
Check connection on printed circuit board or actuator.
26/27
Electronic expansion valve malfunction
(Y4E)-A1P (X25A)
Check connection on printed circuit board or actuator.
29/34
Electronic expansion valve malfunction
(Y5E)-A7P (X8A)
Check connection on printed circuit board or actuator.
31/36
Electronic expansion valve malfunction
(Y6E)-A7P (X10A)
Check connection on printed circuit board or actuator.
32/37
Electronic expansion valve malfunction
(Y7E)-A7P (X11A)
Check connection on printed circuit board or actuator.
F3
01/03
Discharge temperature too high (R2T/R21T/R22T):
•
Stop valves are closed.
•
Reverse connection of high/low pressure gas pipe
and suction gas pipe of Branch Selector unit.
•
Refrigerant shortage.
•
Open stop valves.
•
Check refrigerant amount and recharge.
•
Check connection of high/low pressure gas pipe
and suction gas pipe.
20/21
Compressor casing temperature too high (R14T):
•
Stop valves are closed.
•
Refrigerant shortage.
•
Open stop valves.
•
Check refrigerant amount and recharge.
F6
02
•
Stop valves are closed.
•
Refrigerant overcharge.
•
Open stop valves.
•
Check refrigerant amount and recharge.
F9
01
Electronic expansion valve malfunction (Branch Selec
-
tor units).
Check connection on printed circuit board or actuator.
02
05
H9
01/02
Temperature sensor malfunction
(R1T)-A1P (X18A)
Check connection on printed circuit board or actuator.
J3
16/22
17/23
Temperature sensor malfunction
(R21T)-A1P (X19A)
Check connection on printed circuit board or actuator.
18/24
Temperature sensor malfunction
(R22T)-A1P (X19A)
Check connection on printed circuit board or actuator.
19/25
Temperature sensor malfunction
(R22T)-A1P (X19A)
Check connection on printed circuit board or actuator.
47/49
48/50
Temperature sensor malfunction
(R14T)-A1P (X19A)
Check connection on printed circuit board or actuator.
J5
01/03
Temperature sensor malfunction
(R12T)-A7P (X15A)
Check connection on printed circuit board or actuator.
18/19
Temperature sensor malfunction
(R10T)-A1P (X29A)
Check connection on printed circuit board or actuator.
01_EN_3P477778-7G.indb 41
1/15/2019 10:58:32