Haier AU042FPERA - Page 46

44
Digital tube
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code
de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rm
failure; once
con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rm
failure; once
conrmation,
un-resumable
118 118
Compressor startup
failure
The sensor used for current detecting of transducer is abnormal,
disconnected or incorrectly connection
119 119
Detecting circuit of
transducer current is
abnormal
Current detection sensor of frequency controller is abnormal or
unconnected or connected wrongly.
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rm
failure; once
conrmation,
un-resumable
122 122
Radiator temp.
sensor of transducer
abnormal
Resistor of temp. sensor abnormal or temp. sensor
disconnected
123 123
Transient over
current in IPM
module rectier side
hardware
Transient over current in IPM module rectier side hardware
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
When there is no failure, if the starting condition can not be met, digital tube on master unit will display stand-by
code:
555.0 Standby state of capacity overmatch
When capacity is over 130% or lower than 50%, the
system is standby.
Resumable555.1 Outdoor ambient temperature too high (heating) Ta>27°C, Standby
555.3
Outdoor ambient temperature too high or too low
(cooling)
Ta>54°C or Ta<-15°C, Standby