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Error codes

  • E1

    Error description Phase sequence error

  • E2

    Error description Communication error between indoor and master unit
    Remarks Only displayed on the master unit with the error

  • E4

    Error description T3/T4 temperature sensor error

  • E5

    Error description Abnormal power supply voltage

  • E5

    Error description Reserved
    Remarks Reserved

  • E7

    Error description Discharge temperature sensor error

  • E8

    Error description Outdoor unit address error

  • xE9

    Error description EEPROM mismatch of compressor

  • xF1

    Error description DC bus voltage error

  • F3

    Error description T6B temperature sensor error

  • F5

    Error description T6A temperature sensor error

  • F6

    Error description Electronic expansion valve connection error

  • xH0

    Error description Communication error between main board and compressor drive board

  • H2

    Error description Quantity of outdoor unit decreases error
    Remarks Only displayed on the master unit with the error

  • H3

    Error description Quantity of outdoor unit decreases error
    Remarks Only displayed on the master unit with the error

  • xH4

    Error description Inverter-module protection

  • H5

    Error description 3 times of P2 protection in 60 minutes

  • H6

    Error description 3 times of P2 protection in 60 minutes

  • H7

    Error description Quantity of indoor units mismatching
    Remarks Only displayed on the master unit with the error

  • H8

    Error description High pressure sensor error

  • H9

    Error description 10 times of P9 protection in 120 minutes

  • yHd

    Error description Slave unit malfunction
    (y=1,2; e.g. 1Hd stands for slave unit 1 error)
    Remarks Only displayed on the master unit with the error

  • C7

    Error description 3 times of PL protection in 100 minutes

  • P1

    Error description High pressure protection or discharge temperature switch protection

  • P2

    Error description Low pressure protection

  • xP3

    Error description Compressor current protection

  • P4

    Error description Discharge temperature protection

  • P5

    Error description High temperature protection of condenser

  • xP9

    Error description Fan module protection

  • xPL

    Error description Inverter module temperature protection

  • PP

    Error description Compressor discharge insufficient superheat protection

  • xL0

    Error description Inverter compressor module error

  • xL1

    Error description DC bus low voltage protection

  • xL2

    Error description DC bus high voltage protection

  • xL4

    Error description MCE error

  • xL5

    Error description Zero speed protection

  • xL7

    Error description Phase sequence protection

  • xL8

    Error description Compressor frequency variation greater than 15 Hz within one second protection

  • xL9

    Error description Actual compressor frequency differs from target frequency by more than 15 Hz protection
Error code Error description
E0 Mode conflict
E1 Communication error between indoor and outdoor units
E2 Indoor ambient temperature sensor (T1) error
E3 Indoor heat exchanger mid-point temperature sensor (T2) error
E4 Indoor heat exchanger outlet temperature sensor (T2B) error
E6 Fan error
E7 EEPROM error
Eb Indoor EEV coil error
Ed Outdoor unit error
EE Water level error
FE Indoor unit has not been assigned an address