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Malfunction code
Contents
Solution
Main
code
Sub code
Master
Slave 1 Slave 2
e3
01
03
05
High pressure switch was activated (S1PH) - A1P(X2A).
Check stop valve situation or abnormalities in (field) piping or
airflow over air cooled coil.
02
04
06
Refrigerant overcharge.
Stop valve closed.
Check refrigerant recharge unit.
Open stop valve.
.
e
v
l
a
v
p
o
t
s
d
i
u
q
il
n
e
p
O
.
)
d
i
u
q
il
(
d
e
s
o
l
c
e
v
l
a
v
p
o
t
S
5
1
4
1
3
1
20
21
22
High pressure switch was activated (S2PH) - A1P(X3A).
Check stop valve situation or abnormalities in (field) piping or
airflow over air cooled coil.
e4
01
02
03
Low pressure malfunction :
Stop valve closed.
Refrigerant shortage.
Indoor unit malfunction.
Open stop valve.
Check refrigerant recharge unit.
Check the user interface's display or Transmission wiring
between the outdoor unit and the indoor unit.
e9
01
05
08
Electronic expansion valve malfunction (main) (Y1E) -
A1P(X21A).
Check connection on PCB or actuator.
03
06
09
Electronic expansion valve malfunction (subcool) (Y2E) -
A1P(X22A).
Check connection on PCB or actuator.
26
27
28
Electronic expansion valve malfunction (refrigerant auto
charge) (Y4E) - A1P(X25A).
Check connection on PCB or actuator.
f3
01
03
05
Discharge temperature too high (R21T/R22T) :
Stop valve closed.
Refrigerant shortage.
Open stop valve.
Check refrigerant recharge unit.
20
21
22
Compressor casing temperature too high (R8T/R9T) :
Stop valve closed.
Refrigerant shortage.
Open stop valve.
Check refrigerant recharge unit.
f6
02
Refrigerant overcharge.
Stop valve closed.
Check refrigerant recharge unit.
Open stop valve.
h9
01
02
03
Ambient temperature sensor malfunction (R1T) - A1P(X18A).
Check connection on PCB or actuator.
j3
16
22
28
Discharge temperature sensor malfunction (R21T): open
circuit - A1P (X19A).
Check connection on PCB or actuator.
17
23
29
Discharge temperature sensor malfunction (R21T): short
circuit - A1P (X19A).
Check connection on PCB or actuator.
18
24
30
Discharge temperature sensor malfunction (R22T): open
circuit - A1P (X19A).
Check connection on PCB or actuator.
circuit - A1P (X19A).
19
25
31
Discharge temperature sensor malfunction (R22T): short
circuit - A1P (X19A).
Check connection on PCB or actuator.
38
42
44
Compressor casing temperature sensor malfunction (R9T):
open circuit - A1P (X19A).
Check connection on PCB or actuator.
39
43
45
Compressor casing temperature sensor malfunction (R9T):
short circuit - A1P (X19A).
Check connection on PCB or actuator.
47
49
51
Compressor casing temperature sensor malfunction (R8T):
open circuit - A1P (X19A).
Check connection on PCB or actuator.
48
50
52
Compressor casing temperature sensor malfunction (R8T):
short circuit - A1P (X19A).
Check connection on PCB or actuator.
j5
01
03
05
Suction temperature sensor malfunction (R3T) - A1P (X30A).
Check connection on PCB or actuator.
j7
06
07
08
Liquid temperature sensor (after subcool HE) malfunction
(R5T) - A1P (X30A).
Check connection on PCB or actuator.
j8
01
02
03
Liquid temperature sensor (coil) malfunction (R4T) - A1P
(X30A).
Check connection on PCB or actuator.
j9
01
02
03
Gas temperature sensor (after subcool HE) malfunction
(R6T) - A1P (X30A).
Check connection on PCB or actuator.
ja
06
08
10
High pressure sensor malfunction (S1NPH): open circuit -
A1P (X32A).
Check connection on PCB or actuator.
07
09
11
High pressure sensor malfunction (S1NPH): short circuit -
A1P (X32A).
Check connection on PCB or actuator.
jc
06
08
10
Low pressure sensor malfunction (S1NPL): open circuit - A1P
(X31A).
Check connection on PCB or actuator.
07
09
11
Low pressure sensor malfunction (S1NPL): short circuit - A1P
(X31A).
Check connection on PCB or actuator.
lc
14
15
16
Transmission outdoor unit - inverter: INV1 transmission
trouble - A1P (X20A, X28A, X40A).
Check connection.
19
20
21
Transmission outdoor unit - inverter: FAN1 transmission
trouble - A1P (X20A, X28A, X40A).
Check connection.
24
25
26
Transmission outdoor unit - inverter: FAN2 transmission
trouble - A1P (X20A, X28A, X40A).
Check connection.
30
31
32
Transmission outdoor unit - inverter: INV2 transmission
trouble - A1P (X20A, X28A, X40A).
Check connection.
Summary of Contents for RXQ10AYM
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