Idiomas disponibles
Idiomas disponibles
Table 7.4 Installation and debugging error code
Error code
U11
Outdoor unit type setting error
U12
Capacity setting error
U21
The system contains the 1st generation indoor unit or the indoor units address are repeated
U22
Only hydraulic module available for system IDUs
U23
Common IDU and constant temperature and humidity modular AHU in the system
U24
Common IDU and reheat type fresh air modular AHU in the system
U25
Non-common IDU in the system
U26
IDU and ODU mismatch
U31
No test run or unsuccessful test run, please re-enter the test run
U32
Outdoor temperature out of operating range
U33
Indoor temperature out of operating range
U34
Outdoor and indoor temperature out of operating range
U35
Liquid side stop valve is not opened
U37
Gas side stop valve is not opened
U38
No address
U3A
The communication cable is connected incorrectly
U3b
The installation environment is abnormal
U3C
Auto mode error
U41
Common indoor unit exceeds the allowable connection range
U42
Fresh Air Processing indoor unit exceeds the allowable connection range
U43
AHU kit (discharge air temperature control) is out of the allowable connection range
U44
AHU kit (return air temperature control) is out of the allowable connection range
Constant temperature and humidity modular AHU (with outlet air temperature control)
U45
combination ratio out of range
Reheat type fresh air modular AHU (with outlet air temperature control) combination ratio out
U46
of range
U48
The total capacity of the indoor unit is out of the allowable connection range
U51
Detected more than one outdoor unit in the individual VRF system
U53
Detected different series outdoor units in the same VRF system
U54
Number of MS on heat pump ODU ≥ 1
Table 7.5 Compressor driver error code
Error code
xL01
xL1* or xL2* error occurs 3 times in 60 minutes
xL11
Software overcurrent
xL12
Software overcurrent protection lasting 30s
xL1E
Hardware overcurrent
xL2E
Module overtemperature protection
xL33
Bus voltage drop fault
xL43
The current sampling bias is abnormal
xL45
Motor code mismatch
xL46
IPM protection (FO)
xL47
Module type mismatch
xL4E
EEPROM error
xL51
Out-of-step error
xL52
Locked-rotor protection
xL5E
Startup failed
xL65
IPM short circuit
xL66
FCT test fault
Motor phase loss protection
xL6E
xL71
U-phase upper driver open circuit
xL76
W-phase lower driver open circuit
xLB7
Other check exceptions
xLBE
High voltage switch operation
xLBF
Software certification module failure
Note: 'x' is a placeholder for the compressor address, with 1 representing compressor A and 2 representing compressor B.
Error description
Error description
07
Manual restart
required
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Manual restart
required
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
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