ELECTRICAL WIRING
77
ENGLISH
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Title
Cause of Error
Outdoor unit related error
3
2
*
Master Outdoor Unit Inverter Compres-
sor1 High Discharge Temperature
Master Outdoor Unit Inverter Compressor1 High Dis-
charge Temperature
3
3
*
Master Outdoor Unit Inverter Compres-
sor2 High Discharge Temperature
Master Outdoor Unit Inverter Compressor2 High Dis-
charge Temperature
3
4
* High Pressure of Master Outdoor Unit
High Pressure of Master Outdoor Unit
3
5
* Low Pressure of Master Outdoor Unit
Low Pressure of Master Outdoor Unit
3
6
*
Master Outdoor Unit Low Compression
Ratio Limited
Master Outdoor Unit Low Compression Ratio Limited
4
0
*
Master Outdoor Unit Inverter Compressor
CT Sensor Fault
Master Outdoor Unit Inverter Compressor CT Sensor
open or short
4
1
*
Master Outdoor Unit Inverter Compres-
sor1 Discharge Temperature Sensor Fault
Master Outdoor Unit Inverter Compressor Discharge
Temperature Sensor open or short
4
2
*
Master Outdoor Unit Low Pressure Sen-
sor Fault
Master Outdoor Unit Low Pressure Sensor open or
short
4
3
*
Master Outdoor Unit High Pressure Sen-
sor Fault
Master Outdoor Unit High Pressure Sensor open or
short
4
4
*
Master Outdoor Unit Air Temperature
Sensor Fault
Master Outdoor Unit Air Temperature Sensor open or
short
4
5
*
Master Outdoor Unit Heat Exchanger
Temperature Sensor (Front side) Fault
Master Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
4
6
*
Master Outdoor Unit Suction Temperature
Sensor Fault
Master Outdoor Unit Suction Temperature Sensor
open or short
4
7
*
Master Outdoor Unit Inverter Compres-
sor2 Discharge Temperature Sensor Fault
Master Outdoor Unit Inverter Compressor2 Discharge
Temperature Sensor open or short
4
9
*
Master Outdoor Unit Faulty IPM Tempera-
ture Sensor
Master Outdoor Unit IPM Temperature Sensor
short/open
5
0
*
Omitting connection of R, S, T power of
Master Outdoor Unit
Omitting connection of Master outdoor unit
5
1
* Excessive capacity of indoor units
Excessive connection of indoor units compared to ca-
pacity of Outdoor Unit
5
2
*
Communication error : inverter PCB
→
Main PCB
Failing to receive inverter signal at main PCB of Mas-
ter Outdoor Unit
5
3
*
Communication error : indoor unit
→
Main
PCB of Outdoor Unit
Failing to receive indoor unit signal at main PCB of
Outdoor Unit .
5
7
*
Communication error : Main PCB
→
in-
verter PCB
Failing to receive signal main PCB at inverter PCB of
Master Outdoor Unit
5
9
* Wrong combination of Outdoor Units
Installation might be mixed with old series
models(Multi V lll,ll …)
6
0
*
Inverter PCB EEPROM Error of Master
Outdoor Unit
Access Error of Inverter PCB of Master Outdoor Unit
6
2
*
Master Outdoor Unit Inverter Heatsink
High Temperature
System is turned off by Master Outdoor Unit Inverter
Heatsink High Temperature
6
5
*
Master Outdoor Unit Inverter Heatsink
Temperature Sensor Fault
Master Outdoor Unit Inverter Heatsink Temperature
Sensor open or short
6
7
* Master Outdoor Unit Fan Lock
Restriction of Master Outdoor Unit