If some error occurs when the unit is running, the error code will be displayed on the wired controller. Check for more details about the meaning of each error
Errors of definition = The compressor is startup
Main control display for outdoor unit
Yellow LED = Flash 1 time
Red LED =
Green LED =
Indoor unit code =
Errors of definition = IPM current protection
Main control display for outdoor unit
Yellow LED = Flash 3 times
Red LED =
Green LED =
Indoor unit code = H5
Errors of definition = IPM temperature protection
Main control display for outdoor unit
Yellow LED = Flash 5 times
Red LED =
Green LED =
Indoor unit code = P8
Errors of definition = PFC current protection
Main control display for outdoor unit
Yellow LED = Flash 7 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = PFC temperature protection
Main control display for outdoor unit
Yellow LED = Flash 8 times
Red LED =
Green LED =
Indoor unit code = P8
Errors of definition = Low voltage protection
Main control display for outdoor unit
Yellow LED = Flash 9 times
Red LED =
Green LED =
Indoor unit code = PL
Errors of definition = High voltage protection
Main control display for outdoor unit
Yellow LED = Flash 10 times
Red LED =
Green LED =
Indoor unit code = PH
Errors of definition = Low pressure protection
Main control display for outdoor unit
Yellow LED = Flash 11 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = High pressure protection
Main control display for outdoor unit
Yellow LED = Flash 12 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = High pressure switch protection
Main control display for outdoor unit
Yellow LED = Flash 13 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = Capacitor charging error
Main control display for outdoor unit
Yellow LED = Flash 14 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = AC current protection
Main control display for outdoor unit
Yellow LED = Flash 15 times
Red LED =
Green LED =
Indoor unit code = E5
Errors of definition =
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code =
Errors of definition = Memory card error
Main control display for outdoor unit
Yellow LED = Flash 16 times
Red LED =
Green LED =
Indoor unit code =
Errors of definition = Compressor demagnetizing protection
Main control display for outdoor unit
Yellow LED = Flash 17 times
Red LED =
Green LED =
Indoor unit code = HE
Errors of definition = Compressor desynchronizing
Main control display for outdoor unit
Yellow LED = Flash 18 times
Red LED =
Green LED =
Indoor unit code = H7
Errors of definition = Compressor phase lack
Main control display for outdoor unit
Yellow LED = Flash 19 times
Red LED =
Green LED =
Indoor unit code = U2
Errors of definition = Compressor phase circuit detection error
Main control display for outdoor unit
Yellow LED = Flash 20 times
Red LED =
Green LED =
Indoor unit code = U1
Errors of definition = Compressor power protection
Main control display for outdoor unit
Yellow LED = Flash 21 times
Red LED =
Green LED =
Indoor unit code = L9
Errors of definition = Compressor overload protection
Main control display for outdoor unit
Yellow LED = Flash 22 times
Red LED =
Green LED =
Indoor unit code = H3
Errors of definition = Compressor discharge temperature protection
Main control display for outdoor unit
Yellow LED = Flash 23 times
Red LED =
Green LED =
Indoor unit code = E4
Errors of definition = Lack of refrigerant or jam protection
Main control display for outdoor unit
Yellow LED = Flash 31 times
Red LED =
Green LED =
Indoor unit code = F0
Errors of definition = Normal operation
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 1 time
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for AC current
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 2 times
Green LED =
Indoor unit code =
Errors of definition = Oil returning
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 3 times
Green LED =
Indoor unit code =
Errors of definition = Defrosting
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 4 times
Green LED =
Indoor unit code = H1
Errors of definition = Frequency limitation for IPM temperature
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 5 times
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for PFC temperature
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 6 times
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for compressor overload
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 8 times
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for compressor discharge temperature
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 9 times
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for low pressure
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 10 times
Green LED =
Indoor unit code =
Errors of definition = Frequency limitation for high pressure
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 11 times
Green LED =
Indoor unit code =
Errors of definition = Discharge temperature sensor error
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 12 times
Green LED =
Indoor unit code = F5
Errors of definition = Outdoor temperature sensor error
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 13 times
Green LED =
Indoor unit code = F3
Errors of definition = Condenser temperature sensor error
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 17 times
Green LED =
Indoor unit code =
Errors of definition = Low pressure sensor error
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 18 times
Green LED =
Indoor unit code =
Errors of definition = High pressure sensor error
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 19 times
Green LED =
Indoor unit code =
Errors of definition = Fan motor error for indoor unit
Main control display for outdoor unit
Yellow LED =
Red LED = Flash 20 times
Green LED =
Indoor unit code = H6
Errors of definition = Driving board is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 1 time
Indoor unit code =
Errors of definition = Testing board is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 2 times
Indoor unit code =
Errors of definition = Computer is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 4 times
Indoor unit code =
Errors of definition = Indoor unit 1 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 5 times
Indoor unit code =
Errors of definition = Indoor unit 2 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 6 times
Indoor unit code =
Errors of definition = Indoor unit 3 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 7 times
Indoor unit code =
Errors of definition = Indoor unit 4 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 8 times
Indoor unit code =
Errors of definition = Indoor unit 5 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 9 times
Indoor unit code =
Errors of definition = Indoor unit 7 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 11 times
Indoor unit code =
Errors of definition = Indoor unit 8 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 12 times
Indoor unit code =
Errors of definition = Indoor unit 9 is connected
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED = Flash 13 times
Indoor unit code =
Errors of definition = Indoor unit anti-freeze protection
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = E2
Errors of definition =
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code =
Errors of definition = Indoor temperature sensor error
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = F1
Errors of definition = Indoor evaporator midway temperature sensor error
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = F2
Errors of definition = Temperature sensor error for liquid pipe of BU module
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = b5
Errors of definition = Temperature sensor error for gas pipe of BU module
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = b7
Errors of definition = Running mode conflicts
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = E7
Errors of definition = Communication error
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = E6
Errors of definition = Water full error of indoor unit
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = E9
Errors of definition = Refrigerant recovery mode
Main control display for outdoor unit
Yellow LED =
Red LED =
Green LED =
Indoor unit code = Fo
BU module
Errors = BU 1 is connected
Indicating LED flashing times
Yellow LED = Flash 1 time
Green LED =
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = BU 2 is connected
Indicating LED flashing times
Yellow LED = Flash 2 times
Green LED =
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = BU 3 is connected
Indicating LED flashing times
Yellow LED = Flash 3 times
Green LED =
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit A is connected
Indicating LED flashing times
Yellow LED =
Green LED = Flash 1 time
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit B is connected
Indicating LED flashing times
Yellow LED =
Green LED = Flash 2 times
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit C is connected
Indicating LED flashing times
Yellow LED =
Green LED = Flash 3 times
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit D is connected
Indicating LED flashing times
Yellow LED =
Green LED = Flash 4 times
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit E is connected
Indicating LED flashing times
Yellow LED =
Green LED = Flash 5 times
Red LED =
Indoor unit error code =
Outdoor unit error code =
Errors = Indoor unit A gas tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 1 time
Indoor unit error code = b7
Outdoor unit error code = b7 indoor unit address
Errors = Indoor unit A liquid tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 2 times
Indoor unit error code = b5
Outdoor unit error code = b5 indoor unit address
Errors = Indoor unit B gas tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 3 times
Indoor unit error code = b7
Outdoor unit error code = b7 indoor unit address
Errors = Indoor unit B liquid tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 4 times
Indoor unit error code = b5
Outdoor unit error code = b5 indoor unit address
Errors = Indoor unit C gas tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 5 times
Indoor unit error code = b7
Outdoor unit error code = b7 indoor unit address
Errors = Indoor unit C liquid tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 6 times
Indoor unit error code = b5
Outdoor unit error code = b5 indoor unit address
Errors = Indoor unit D gas tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 7 time
Indoor unit error code = b7
Outdoor unit error code = b7 indoor unit address
Errors = Indoor unit D liquid tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 8 times
Indoor unit error code = b5
Outdoor unit error code = b5 indoor unit address
Errors = Indoor unit E gas tube temperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 9 time
Indoor unit error code = b7
Outdoor unit error code = b7 indoor unit address
Errors = Indoor unit E liquid tubevtemperature sensor error
Indicating LED flashing times
Yellow LED =
Green LED =
Red LED = Flash 10 times
Indoor unit error code = b5
Outdoor unit error code = b5 indoor unit address
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