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Table 6. Outdoor Unit Error Codes
Error Code Description
E0
Communication error between outdoor units
E1
Power phase loss error
E2
Communication error between indoor and main outdoor unit
E4
Outdoor ambient temperature sensor (T4/T10) and condenser pipe
temperature sensor (T3A/T3B) error
E5
Voltage error
E6
Inverter module temperature sensor error
E7
Discharge temp sensor error
E8
Incorrect ENC 1 main - sub configuration
E9
Compressor driver error
H0
Communication error between main control chip and inverter driver
chip
H2
Quantity of outdoor unit decreased
H3
Quantity of outdoor unit increased
H4
Compressor inverter module protection appears three times in 60
minutes, X stands for corresponding module
H5
Low pressure protection lock out (P2 3X in 60 minutes)
H6
Compressor discharge temperature protection ( P4 3X in 100 minutes)