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Phase sequence error
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Communication error between indoor and master unit
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T3/T4 temperature sensor error
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Abnormal power supply voltage
|
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Reserved
|
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Discharge temperature sensor error
|
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Outdoor unit address error
|
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EEPROM mismatch of compressor
|
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DC bus voltage error
|
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T6B temperature sensor error
|
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T6A temperature sensor error
|
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Electronic expansion valve connection error
|
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Communication error between main board and compressor drive board
|
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Quantity of outdoor unit decreases error
|
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Quantity of outdoor unit decreases error
|
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Inverter-module protection
|
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3 times of P2 protection in 60 minutes
|
|
3 times of P2 protection in 60 minutes
|
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Quantity of indoor units mismatching
|
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High pressure sensor error
|
|
10 times of P9 protection in 120 minutes
|
Slave unit malfunction
(y=1,2; e.g. 1Hd stands for slave unit 1 error)
|
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3 times of PL protection in 100 minutes
|
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High pressure protection or discharge temperature switch protection
|
|
Low pressure protection
|
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Compressor current protection
|
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Discharge temperature protection
|
|
High temperature protection of condenser
|
|
Fan module protection
|
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Inverter module temperature protection
|
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Compressor discharge insufficient superheat protection
|
|
Inverter compressor module error
|
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DC bus low voltage protection
|
|
DC bus high voltage protection
|
|
MCE error
|
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Zero speed protection
|
|
Phase sequence protection
|
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Compressor frequency variation greater than 15 Hz within one second protection
|
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Actual compressor frequency differs from target frequency by more than 15 Hz protection
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