Haier AU052FNERA - Page 23

21
Failure code
Digital tube
indication on
master unit
Failure code denition Failure description Remarks
108
Transient over current in IPM
module rectier side software
Transient over current in IPM module rectier side software
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
109
Current detection circuit
abnormality
Current detection circuit abnormality
110 IPM modular protection (F0)
IPM modular over current, in short circuit, over heat, voltage
too low of control circuit.
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
Radiator of transducer temp.
too high
Radiator temp. too high
113 Transducer overload Output current of transducer is too high
114
Voltage too low of DC bus line
of transducer
Voltage of power source is too low
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
115
Voltage too high of DC bus
line of transducer
Voltage of power source is too high
116
Communication abnormal
between transducer and
control PCB
Communication is disconnected Resumable
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rm
failure; once
conrmation,
un-resumable
118 Compressor startup failure
The sensor used for current detecting of transducer is
abnormal, disconnected or incorrectly connection
119
Detecting circuit of transducer
current is abnormal
Current detection sensor of frequency controller is abnormal
or unconnected or connected wrongly.
120
Power supply of transducer
abnormal
Power supply of transducer is broken down instantly
121
Power supply of inverter board
is abnormal
Power supply of inverter board is broken down instantly
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
122
Radiator temp.sensor of
transducer abnormal
Resistor of temp.sensor abnormal or temp.sensor
disconnected
123
Transient over current in IPM
module rectier side hardware
Transient over current in IPM module rectier side hardware