28
LD
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code
de
fi
nition
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, con
fi
rm
failure; once
con
fi
rmation,
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, con
fi
rm
failure; once
con
fi
rmation,
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, con
fi
rm
failure; once
con
fi
rmation,
un-resumable
122
122
Radiator temp.
sensor of
transducer
abnormal
Resistor of temp.sensor abnormal or
temp.sensor disconnected
Failure code
