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Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor Discharge Tem-
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perature Sensor Fault
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2
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Outdoor Unit Low Pressure Sensor Fault
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Outdoor Unit High Pressure Sensor Fault
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Outdoor Unit Air Temperature Sensor Fault
4
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Outdoor Unit Suction Temperature Sensor Fault
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Excessive capacity of indoor units
Communication error : inverter PCB ' Main PCB
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Communication error : indoor unit ' Main PCB of
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outdoor unit
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Inverter PCB EEPROM Error of Outdoor Unit
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Heat sink temperature high error
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Outdoor Unit Fan Lock
7
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PFC CT Sensor Error of Outdoor Unit
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Instant Over Current(Peak) of Outdoor Unit PFC
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Outdoor Unit Fan CT Sensor Error
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Outdoor Unit Fan DC Link High Voltage Error
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Outdoor Unit Fan Over Current Error
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Outdoor Unit Fan Hall Sensor Error
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Outdoor Unit Fan Start Failure Error
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Outdoor Unit Main PCB EEPROM Error
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Outdoor Unit Fan PCB EEPROM Error
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PFC PCB EEPROM Error
Title
Cause of Error
Outdoor Unit Inverter Compressor CT Sensor open or short
Outdoor Unit Inverter Compressor Discharge Temperature Sen-
sor 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 Suction Temperature Sensor open or short
Excessive connection of indoor units compared to capacity of out-
door unit
Failing to receive inverter signal at main PCB of Outdoor Unit
Failing to receive indoor unit signal at main PCB of outdoor Unit.
Access Error of Inverter PCB of Outdoor Unit
When Heat sink temperature is above setting value
Restriction of Outdoor Unit
Outdoor Unit PFC CT Sensor open or short
Instant Over Current(Peak) of Outdoor Unit PFC
Outdoor Unit Fan CT Sensor open or short
Outdoor Unit Fan DC Link High Voltage Error
Outdoor Unit Fan Current is over 5A
Outdoor Unit Fan Hall Sensor open or Short
Outdoor Unit Fan First Position Sensing Failure
Communication Fail Between Outdoor Unit Main MICOM and
EEPROM or omitting EEPROM
Communication Fail Between Outdoor Unit Fan MICOM and EEP-
ROM or omitting EEPROM
Communication Fail Between Outdoor Unit PFC
MICOM and EEPROM or omitting EEPROM
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