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4. APPENDIX
4.1 Table of Error Codes
This manual is intended for reference only, refer to the error shown on the actual device for
troubleshooting.
Please consult the engineer to check if the error code of the specific model belongs to a
"new generation of refrigerant system".
Table of Error Codes for Outdoor Unit:
Error code
1
E0
Communication error between outdoor units
E1
Phase sequence error
E2
Communication error between indoor and master unit
Outdoor heat exchanger temperature sensor (T3) error or outdoor ambient temperature
E4
sensor (T4) error
E5
Abnormal power supply voltage
E7
Compressor top or discharge pipe temperature sensor (T7C1/2) error
E8
Outdoor unit address error
xE9
EEPROM mismatch
xF1
DC bus voltage error
F3
Plate heat exchanger cooling refrigerant outlet temperature sensor (T6B) error
F5
Plate heat exchanger cooling refrigerant inlet temperature sensor (T6A) error
F6
Electronic expansion valve connection error
xH0
Communication error between main control chip and inverter driver chip
H2
Number of slave units detected by master unit has decreased
H3
Number of slave units detected by master unit has increased
xH4
Inverter module protection
H5
P2 protection appears three times in 60 minutes
H6
P4 protection appears three times in 100 minutes
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