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32
ENGLISH
Display Title Cause of Error
Outside unit related error
3 5 *
3 6 *
3 9 *
4 0 *
4 1 *
4 2 *
4 3 *
4 4 *
4 6 *
4 9 *
5 0 *
5 1 *
5 2 *
5 3 *
5 7 *
5 9 *
6 0 *
6 2 *
6 5 *
7 1 *
8 6 *
88*
Master outside unit low pressure over-drop.
Master Outside Unit Low Compression Ratio Lim-
ited
Master Outside unit Communication error between
Master outside unit PFC and inverter board
Master outside unit inverter compressor CT sensor
error
Master outside unit inverter compressor discharge
temperature sensor error
Master Outside Unit Low Pressure Sensor Fault
Master Outside Unit High Pressure Sensor Fault
Master Outside unit air temperature sensor error
Master outside unit suction temperature sensor
error
Master outside unit IGBT temperature sensor error
Master outside unit 3 phase power missing
Over-capacity (Indoor unit capacity sum is exces-
sive) connection
Communication error: inverter PCB ‘ Main PCB
Communication error: indoor unit ‘ Main PCB of
Outside Unit
Communication error: Main PCB ‘ inverter PCB
Wrong setting between master and slave outside
unit
Master outside unit inverter PCB EEPROM error
Master outside unit inverter IGBT over-rise error
Master outside unit inverter IGBT temperature sen-
sor error
PFC CT Sensor Error of Master Outside Unit
Master outside unit master PCB EEPROM error
PFC PCB EEPROM error
Compressor turned off due to master outside unit low pressure
overdrop.
Master Outside Unit stayed under low Compression limit for 3
minutes
Master Outside unit inverter compressor current detection (CT) sen-
sor disconnection or short circuit
Master outside unit inverter compressor current detection (CT) sen-
sor disconnection or short circuit
Master outside unit inverter compressor discharge temperature
sensor disconnection or short circuit
Master Outside Unit Low Pressure Sensor open or short
Master Outside Unit High Pressure Sensor open or short
Master Outside unit air temperature sensor disconnection or short
circuit
Master outside unit suction temperature sensor disconnection or
short circuit
Master out side unit IGBT temperature sensor disconnection or
short circuit
Master outside unit power line phase missing
Excessive connection of indoor unit connection display value (Differ-
ent from outside unit)
When the inverter controller signal is not received from the master
outside unit inverter controller
When the indoor unit control signal is not received from the master
Outside unit controller
Failing to receive inverter contoroller signal at Master Outside Unit
controller
When geothermal mode setting is different(Fn 2 setting)
Master outside unit inverter PCB EEPROM ACCESS error
Master outside unit inverter IGBT when the temperature rises
above 110 °C
Master outside unit inverter IGBT temperature sensor disconnec-
tion or short circuit
Master Outside Unit PFC CT Sensor open or short
Communication error between master outside unit master MICOM
andEEPROM or EEPROM missing
Communication error between master outside unit master PFC and
EEPROM or EEPROM missing
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