58
58
LD
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code definition
Failure description
Remarks
110
110
IPM modular protection
(F0)
IPM modular over current, in short
circuit, over heat, voltage too low of
control circuit.
3 times in an hour,
confirm failure;
once confirmation,
un-resumable
111
111
Compressor out of
control
In the course of compressor startup or
running, the unit can not detect the rotor
position, or not connecting compressor.
112
112
Radiator of transducer
temp.too high
Radiator temp. too high.
113
113
Transducer overload
Output current of transducer is too high.
114
114
Voltage too low of DC
bus line of transducer
Voltage of power source is too low.
115
115
Voltage too high of DC
bus line of transducer
Voltage of power source is too high.
116
116
Communication
abnormal between
transducer and control
PCB
Communication is disconnected.
Resumable
117
117
Transducer over current
(software)
Compressor startup fails for 5 times
continuously, or compressor is running
down till stops caused by over current
or over heat.
3 times in an hour,
confirm failure;
once confirmation,
un-resumable
118
118
Compressor startup
failure
The sensor used for current detecting of
transducer is abnormal, disconnected or
incorrectly connection.
120
120
Power supply of
transducer abnormal
Power supply of transducer is broken
down instantly.
121
121
Power supply of inverter
board is abnormal
Power supply of inverter board is broken
down instantly.
3 times in an hour,
confirm failure;
once confirmation,
un-resumable
122
122
Radiator temp. sensor
of transducer abnormal
Resistor of temp.sensor abnormal or
temp.sensor disconnected.
When there is no failure, if the starting condition can not be met, digital tube on master unit will display
stand-by code:
Code
Standby code description
555.0
When capacity is over 130% or low-er than 50%, the system is standby.
555.1
When it is in heating mode with ambient temp. over 27°C the system standby
555.3
When it is in cooling mode with ambient temp. over 54°C or lower -10°C, the system is standby.
555.4
Oil temperature is too low, the system is standby. heater in heating compressor up to 2 hours
U**
BM1-1 is OFF, the outdoor is searching indoor unit. U** is the number of indoor. E.g. U16 represents
16 indoor units within system. If the number of indoor units is correct, please set BM1-1 to ON.