Airwell YEVFD Série Manuel D'installation page 31

Failure code
Digital tube Indication
indication on wired
on master controller
unit (hex)
Voltage too low of DC bus
114 114
line of transducer
Voltage too high of DC
115 115
bus line of transducer
Communication abnormal
116 116 between transducer and
control PCB
Transducer over current
117 117
(software)
Compressor startup
118 118
failure
Detecting circuit of
119 119 transducer current is
abnormal
Power supply of
120 120
transducer abnormal
Power supply of inverter
121 121
board is abnormal
Radiator temp.sensor of
122 122
transducer abnormal
Transient over current in
123 123 IPM module rectifier side
hardware
When there is no failure, if the starting condition can not be met, digital tube on master unit will display stand-by code:
Standby state of capacity
555.0
overmatch
Outdoor ambient temperature
555.1
too high (heating)
Outdoor ambient temperature
555.3
too high or too low (cooling)
Indoor failure code list
Indication on Indication on wired
master unit controller
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
0A 0A
Outdoor Outdoor failure
failure code code
Failure code definition Failure description
Voltage of power source is too low
Voltage of power source is too high
Communication is disconnected
Compressor startup fails for 5 times continuously, or
compressor is running down till stops caused by over
current or over heat
The sensor used for current detecting of transducer
is abnormal, disconnected or incorrectly connection
Current detection sensor of frequency controller is
abnormal or unconnected or connected wrongly.
Power supply of transducer is broken down instantly
Power supply of inverter board is broken down
instantly
Resistor of temp.sensor abnormal or temp.sensor
disconnected
Transient over current in IPM module rectifier side
hardware
When the ratio of indoor horse power and outdoor horse power is
less than 50% or more than 130%, the system is in standby mode.
Ta>27°C, Standby
Ta>54°C or Ta<-15°C, Standby
Flash times of LED5 on
indoor PCB/timer LED
on remote receiver
1
2
3
4
5
6
7
8
9
10
20
Failure code definition
Indoor ambient temp. sensor Ta failure
Indoor coil temp. sensor Tc1 failure
Indoor coil temp. sensor Tc2 failure
Indoor TW sensor failure
Indoor EEPROM failure
Communication between indoor and outdoor failure
Communication between indoor and wired controller failure
Indoor drainage failure
Indoor repeated address
Indoor repeated central control address
Outdoor corresponding failure
23
Remarks
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable
Resumable
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable
Resumable