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ELECTRICAL WIRING
86
Display
2
6
*
Outdoor Unit Inverter Compressor Start Failure
2
9
*
Outdoor Unit Inverter Compressor Over Current
Outdoor Unit Inverter Compressor1 High
3
2
*
Discharge Temperature
Outdoor Unit Inverter Compressor2 High
3
3
*
Discharge Temperature
3
4
*
High Pressure of Outdoor Unit
3
5
*
Low Pressure of Outdoor Unit
4
0
*
Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor1 Discharge
4
1
*
Temperature Sensor Fault
4
2
*
Outdoor Unit Low Pressure Sensor Fault
4
3
*
Outdoor Unit High Pressure Sensor Fault
4
4
*
Outdoor Unit Air Temperature Sensor Fault
Outdoor Unit Heat Exchanger Temperature Sensor
4
5
*
(Front side) Fault
4
6
*
Outdoor Unit Suction Temperature Sensor Fault
Outdoor Unit Inverter Compressor2 Discharge
4
7
*
Temperature Sensor Fault
4
9
*
Outdoor Unit Faulty IPM Temperature Sensor
Omitting connection of R, S, T power of Outdoor
5
0
*
Unit
5
1
*
Excessive capacity of indoor units
5
2
*
Communication error : inverter PCB
Communication error : indoor unit
5
3
*
Outdoor Unit
5
7
*
Communication error : Main PCB
6
0
*
Inverter PCB EEPROM Error of Master Outdoor Unit
6
2
*
Outdoor Unit Inverter Heatsink High Temperature
Outdoor Unit Inverter Heatsink Temperature
6
5
*
Sensor Fault
6
7
*
Outdoor Unit Fan Lock
7
1
*
Inverter CT Sensor Error of Master Outdoor Unit
7
5
*
Outdoor Unit Fan CT Sensor Error
7
7
*
Outdoor Unit Fan Over Current Error
7
9
*
Outdoor Unit Fan Start Failure Error
8
6
*
Outdoor Unit Main PCB EEPROM Error
8
7
*
Outdoor Unit Fan PCB EEPROM Error
Communication Error Between Outdoor Unit and
1
0
4
*
Other Outdoor Unit
1
0
5
*
Outdoor Unit Fan PCB Communication Error
1
0
6
*
Outdoor Unit Fan IPM Fault Error
Title
The first start failure by Outdoor Unit Inverter Compressor
abnormality or Compressor locked
Outdoor Unit Inverter Compressor Fault OR Drive Fault
Outdoor Unit Inverter Compressor1 High Discharge Temperature
Outdoor Unit Inverter Compressor2 High Discharge Temperature
High Pressure of Outdoor Unit
Low Pressure of Outdoor Unit
Outdoor Unit Inverter Compressor CT Sensor open or short
Outdoor Unit Inverter Compressor Discharge Temperature
Sensor open or short
Outdoor Unit Low Pressure Sensor open or short
Outdoor Unit High Pressure Sensor open or short
Outdoor Unit Air Temperature Sensor open or short
Outdoor Unit Heat Exchanger Temperature Sensor(Front side)
open or short
Outdoor Unit Suction Temperature Sensor open or short
Outdoor Unit Inverter Compressor2 Discharge Temperature
Sensor open or short
Outdoor Unit IPM Temperature Sensor short/open
Omitting connection of outdoor unit
Excessive connection of indoor units compared to capacity of
Outdoor Unit
Main PCB
Failing to receive inverter signal at main PCB of Outdoor Unit
Main PCB of
Failing to receive indoor unit signal at main PCB of Outdoor Unit.
inverter PCB
Failing to receive signal main PCB at inverter PCB of Outdoor Unit
Access Error of Inverter PCB of Outdoor Unit
System is turned off by Outdoor Unit Inverter Heatsink High
Temperature
Outdoor Unit Inverter Heatsink Temperature Sensor open or
short
Restriction of Outdoor Unit
Inverter CT Sensor open or short of Outdoor Unit
Outdoor Unit Fan CT Sensor open or short
Outdoor Unit Fan Current is over 6A
The first start failure by Outdoor Unit Fan abnormality or Fan
locked
Communication Fail Between Outdoor Unit Main MICOM and
EEPROM or omitting EEPROM
Communication Fail Between Outdoor Unit Fan MICOM and
EEPROM or omitting EEPROM
Failing to receive Slave Unit signal at main PCB of Outdoor Unit
Failing to receive fan signal at main PCB of Outdoor unit
Instant Over Current at Outdoor Unit Fan IPM
Cause of Error
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