43
11.
Failure Code
The nixie light of the outdoor unit control panel displays malfunction code directly when malfunction occurs.
(This malfunction table only applies to the follow models referred in this manual.)
AU282FHERA, AU482FIERA (G), AU48NFIERA (G), AU60NFIERA (G)
malfunction code and malfunction confirming
Malfunction
code
Indication
on wired
controller
Malfunction position
1
21
Circuit TE of defrosting temp. sensor
2
22
Circuit TA of environment temp. sensor
3
23
Circuit TS of compressor suction temp. sensor
4
24
Circuit TD of compressor discharge temp. sensor
5
25
Circuit TC of condenser middle part temp. sensor
6
26
Incorrect dipswitch setting for model selection on outdoor PCB
7
27
Current sensor failure
8
28
DC motor failure
9
29
Alarm and stop when the testing indoor numbers are inconsistent with the initial
searched locked numbers which can recoverable
10
2A
Fault of reading EEROM
11
2B
Protecting action of compressor discharge temperature (TD)
12
2C
Protecting action of IPM temperature
13
2D
High pressure switch open circuit
14
2E
Low pressure switch open circuit
15
2F
Discharging temp. too low of inverter compressor
16
30
Protecting action of compressor suction temperature (TS)
17
31
Alarm and stop when starting indoor capacity exceed 160% of outdoor capacity which
can recoverable automatically
18
32
Alarm and stop when current exceed the standard value which can recoverable
automatically
20
34
Communicating fault if control panel and IPM
21
35
Compressor over current
22
36
Communicating fault of indoor and outdoor units
23
37
IPM fault (For signal trip)
24
38
IPM temperature too high
25
39
Over current at acceleration state (hardware trip)
26
3A
Over current at steady state (hardware trip)
27
3B
Over current at deceleration state (hardware trip)
28
3C
DC bus under voltage
29
3D
DC bus over voltage
30
3E
Over current at acceleration state (software trip)