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Malfunction - Haier AU242FHBHA Installation Manual

Outdoor unit
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Malfunction

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.)
AU242FHBHA AU282FHAHA AU482~522FIAIA AU482FIBHA
Malfunction code and malfunction confirming
Malfunction code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
(NOTE:Model AU522FIAIA don't have 15,17,18 malfunction position ).
Malfunction position
Circuit TE of defrosting temperature sensor
Circuit TA of environment temperature sensor
Circuit TS of compressor suction temperature sensor
Circuit TD of compressor discharge temperature sensor
Circuit TC of condenser middle part temperature sensor
Current AC overload
Circuit of current transformer
Overload protector circuit of frequency conversing compressor
Protecting circuit of IPM
Internal fault of control panel
Protecting action of compressor discharge temperature (TD)
Pressure sensor (Pd, Ps) Wrong piping.
Pressure switch acting
NOTE:For AU522 type is Protecting action of high pressure press.
Protecting action of low pressure press
Protecting action of high pressure press
Protecting action of compressor suction temperature (TS)
Circuit Pd of high-pressure sensor
Circuit Ps of low-pressure sensor
Protecting action of compressor discharge temperature of low frequency(TD)
Internal fault of control panel
Internal fault of control panel
Communicating fault of indoor and outdoor units
Internal fault of control panel
AU48NFIAIA
Ps
)
(
Pd
(
)
22

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