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10. LED STATUS
You can determine the operating status by the lighting up and blinking of the LED display.
Check the status using the table below.
10.1. Normal operation codes
Mode
CODE
C L
Cooling
H
t
Heating
o
r During oil recovery operation
Operation
d
F During defrosting operation
P C During power saving operation
L
n During low noise operation
10.2. Error codes
Mode
CODE
Communication
E
1
4.
2 Outdoor unit network communication 2 error
error
E
1
4.
5 The number of indoor unit shortage
E
2
2.
1 Indoor unit capacity error
E
2
4.
2 Connection unit number error (Indoor unit)
Function setting er-
E
2
6.
1 Indoor unit duplicate address error
ror
E
2
8.
1 Auto address setting error
E
2
8.
4 Signal amplifi er auto address error
Indoor unit
E
5
U.
1 Indoor unit miscellaneous error
actuator error
E
6
2.
3 Outdoor unit EEPROM access error
E
6
2.
6 Outdoor unit inverters communication error
E
6
2.
8 Outdoor unit EEPROM data corruption error
E
6
3.
1 Outdoor unit inverter error
Outdoor unit PCB/
Electrical compo-
E
6
7.
2
nent/ Switch error
E
6
8.
2
E
6
9.
1
E
7
1.
1 Outdoor unit discharge temp. thermistor 1 error
E
7
2.
1 Outdoor unit compressor temp. thermistor 1 error
E
7
3.
3 Outdoor unit heat ex. liquid temp. thermistor error
E
7
4.
1 Outside air temp. thermistor error
E
7
5.
1 Outdoor unit suction gas temp. thermistor error
E
7
7.
1 Outdoor unit heat sink temp. thermistor error
E
8
2.
1
Outdoor unit sen-
sor error
E
8
2.
2
E
8
3.
2 Outdoor unit liquid pipe temp. thermistor 2 error
E
8
4.
1
E
8
6.
1 Outdoor unit discharge pressure sensor error
E
8
6.
3 Outdoor unit suction pressure sensor error
E
8
6.
4 Outdoor unit high pressure switch 1 error
E
9
3.
1 Outdoor unit inverter compressor start up error
E
9
4.
1 Outdoor unit trip detection
E
9
5.
5
E
9
7.
1 Outdoor unit fan motor 1 lock error
E
9
7.
4 Outdoor unit fan motor 1 undervoltage error
Outdoor unit
actuator error
E
9
7.
5
E
9
8.
1 Outdoor unit fan motor 2 lock error
E
9
8.
5
E
9
A.
1 Outdoor unit coil 1 (expansion valve 1) error
E
9
A.
2 Outdoor unit coil 2 (expansion valve 2) error
E
A
1.
1
E
A
3.
1 Outdoor unit compressor 1 temperature error
Refrigerant sys-
E
A
4.
1 Outdoor unit high pressure error
tem error
E
A
4.
2 Outdoor unit high pressure protective action 1
E
A
5.
1 Outdoor unit low pressure error
E
A
C.
4 Outdoor unit heat sink temperature error
7-segment LED indicator:
A:
C:
E:
F:
H:
J:
L:
, ,
,
,
,
,
,
1:
2:
3:
4:
5:
6:
7:
,
,
,
,
,
,
DESCRIPTION
DESCRIPTION
Outdoor unit inverter PCB power short interrup-
tion error
Outdoor unit rush current limiting resister temp.
rise error (protective operation)
Outdoor unit transmission PCB parallel communi-
cation error
Outdoor unit sub-cool heat ex. gas inlet temp.
thermistor error
Outdoor unit sub-cool heat ex. gas outlet temp.
thermistor error
Outdoor unit current sensor 1 error
(permanent stop)
Outdoor unit compressor motor loss of synchroni-
zation
Outdoor unit fan motor 1 temperature error
(protective action)
Outdoor unit fan motor 2 temperature error
(protective action)
Outdoor unit discharge temperature 1 error (per-
manent stop)
S:
P:
U:
d:
n:
o:
r:
,
,
,
,
,
,
,
8:
9:
0:
,
,
,
t:
,
En-18
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- Electrical Wiring
- Error Codes
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