Haier AU242FHBHA Installation Manual page 25

Malfunction
AU48NFIBIA AU55NFIAIA AU52NFIAKA AU60NFIAKA AU48NFIBJA Malfunction confirming and malfunction
code
When the remote wire controller display E1,check controller board(LED1)of the indoor unit or the contoller board(LED)
of the outdoor unit.
Malfunction description
Normal
Defrosting temperature sensor
abnormal
Ambient temperature sensor
abnormal
Suction temperature sensor
abnormal
Discharging temperature sensor
abnormal
Coil temperature sensor
abnormal
Over current Protection
Current sensor abnormal
Overload Protection
IPM protection
Read EEPROM value wrongly
Discharging temperature over
high abnormal
High pressure switch abnormal
Voltage over low protection
Voltage over high protection
Low pressure abnormal
(AU55NFIAIA)
Recover the parameter set
when out of factory
Clear the malfunction memory
Need reset
Radiator temperature sensor
abnormal
LED display on
code
the regulating
board
0 Normal
1 E.4.
2 E.1.
E.3.
3
E.2.
4
E.5.
5
O.C.
6
P O.C.
C.T.
7
O.L.
8
P O.L.
E.P.
9
P E.P.
P E.E.
10
O.D.
11
P O.D.
O.P.
12
L.U.
13
P. L.U.
O.U.
14
P O.U.
O.H.
15
P I.A.
16
P C.T.
17
P R.E.
18
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24
If send to
indoor unit
YES
YES
YES
YES
YES
YES
After there are current malfunction for
YES
3 times in 1 hour, the testing board will
display the last abnormal reason P X.X.
No
Need powered off and restart
After trouble shooting, need powered off
YES
and restart
YES
After there are current malfunction for
No
3 times in 1 hour, the testing board will
display the last abnormal reason P X.X.
YES
Need powered off and restart
No
No
After there are current malfunction for
YES
3 times in half an hour, the testing board
will display the last abnormal reason P
No
X.X. Need powered off and restart
YES
YES
After there are voltage malfunction for
3 times in 1 hour,the testing board will
display the last abnormal reason P X.X.
YES
Need powered off and restart.
YES
No
No Need reset and restart
Need reset and restart
No
No use
Need reset and restart
temporarily
Remarks
Resumable
Resumable
Resumable
Resumable
Resumable
Need reset and restart
Resumable