En-29
11. 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.
11.1. Normal operation codes
Mode CODE DESCRIPTION
Operation
CL
Cooling
Ht
Heating
or
During oil recovery operation
dF
During defrosting operation
PC
During power saving operation
Ln
During low noise operation
Sn
During setting of snowfall mode
11.2. Error codes
Mode Code Description
Communication error
E 1 3. 1 Communication error between outdoor units
E 1 4. 1 Outdoor unit network communication 1 error
E 1 4. 2 Outdoor unit network communication 2 error
E 1 4. 5 The number of indoor unit shortage
Function setting error
E 2 8. 1 Auto address setting error
E 2 8. 4 Signal amplifier auto address error
Indoor unit actuator error
E 5 U. 1 Indoor unit miscellaneous error
Outdoor unit PCB/elec-
trical component/switch
error
E 6 1. 2 Outdoor unit under voltage error
E 6 1. 5
Outdoor unit reverse phase, missing phase wire
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 2. A Outdoor unit inverters 2 communication error
E 6 3. 1 Outdoor unit inverter error
E 6 3. 3 Outdoor unit inverter 2 error
E 6 7. 2
Outdoor unit inverter PCB power short interruption
error
E 6 7. 5
Outdoor unit inverter 2 PCB power short interrup-
tion error
E 6 8. 2
Outdoor unit rush current limiting resister temp. rise
error (protective operation)
E 6 8. 3
Outdoor unit rush current limiting resistor temp. 2
rise error (protective operation)
E 6 9. 1
Outdoor unit transmission PCB parallel communi-
cation error
Outdoor unit sensor
error
E 7 1. 1 Outdoor unit discharge thermistor 1 error
E 7 1. 2 Outdoor unit discharge thermistor 2 error
E 7 2. 1 Outdoor unit compressor temp. sensor 1 error
E 7 2. 2 Outdoor unit compressor temp. sensor 2 error
E 7 3. 4 Outdoor unit heat ex. 1 gas temp. sensor error
E 7 3. 5 Outdoor unit heat ex. 1 liquid temp. sensor error
E 7 3. 6 Outdoor unit heat ex. 2 gas temp. sensor error
E 7 3. 7 Outdoor unit heat ex. 2 liquid temp. sensor error
E 7 4. 1 Outside air thermistor error
E 7 5. 1 Outdoor unit suction gas thermistor error
E 7 7. 1 Outdoor unit heat sink thermistor error
E 7 7. 3 Outdoor unit heat sink thermistor 2 error
E 8 2. 2
Outdoor unit sub-cool heat ex. gas outlet thermis-
tor error
E 8 3. 1 Outdoor unit liquid pipe thermistor 1 error
E 8 3. 2 Outdoor unit liquid pipe thermistor 2 error
E 8 4. 1
Outdoor unit current sensor 1 error (permanent
stop)
E 8 4. 3
Outdoor unit current sensor 2 error (permanent
stop)
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 8 6. 5 Outdoor unit high pressure switch 2 error
Outdoor unit actuator
error
E 9 3. 1 Outdoor unit inverter compressor start up error
E 9 3. 4 Outdoor unit inverter compressor 2 start up error
E 9 4. 1 Outdoor unit trip detection
E 9 4. 3 Outdoor unit trip detection 2
E 9 5. 5
Outdoor unit compressor motor loss of synchronization
E 9 5. 6
Outdoor unit compressor 2 motor loss of synchronization
E 9 7. 1 Outdoor unit fan motor lock error
E 9 7. 5
Outdoor unit fan motor temperature error (protec-
tive action)
E 9 7. 9 Outdoor unit fan motor driver error
E 9 8. 1 Outdoor unit fan motor 2 lock error
E 9 8. 5
Outdoor unit fan motor 2 temperature error (protec-
tive action)
E 9 8. 9 Outdoor unit fan motor 2 driver error.
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 9 A. 3 Outdoor unit coil 3 (expansion valve 3) error
E 9 U. 2 Outdoor subordinate unit error
Refrigerant system error
E A 1. 1 Outdoor unit discharge temperature 1 error
E A 2. 1 Outdoor unit discharge temperature 2 error
E A 3. 1 Outdoor unit compressor 1 temperature error
E A 3. 2 Outdoor unit compressor 2 temperature error
E A 4. 1 Outdoor unit high pressure error
E A 4. 2 Outdoor unit high pressure protection 1
E A 4. 3 Outdoor unit high pressure protection 2
E A 5. 1 Outdoor unit low pressure error
E A 6. 3 Outdoor heat exchanger 1 gas temperature error
E A 6. 4 Outdoor heat exchanger 2 gas temperature error
E A C. 4 Outdoor unit heat sink temperature error
E A C. 8 Outdoor unit heat sink 2 temperature error
㪃
㪃
㫋㪑
㪣㪑
㪎㪑
㪟
㪡㪑
㪍㪑
㪚
㪝
㪻㪑 㫅㪑 㫆
㫉㪑
㪃
㪐㪑
㪧
㪬㪑
㪪㪑
㪏㪑
㪃
㪌㪑㪊㪑 㪋
㪈㪑 㪉㪑
㪇㪑
7 segment LED indicator:
9378945722-05_IM_L3.indb 299378945722-05_IM_L3.indb 29 2023/3/24 9:23:512023/3/24 9:23:51
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