Outdoor Unit Troubleshooting - Haier 1U71S2SR2FA Installation Manual

Outdoor Unit
e
LED flash tim
indoor
S
display
Contents of Malfunction
of outdoor
PCB
1 F12 EEPROM ERROR
2
F1 IPM protection
AC overcurrent
3 F22
protection
4
F3 Communication fault
5 F20 Press overload
Overvoltage or underv-
6
F19
oltage protection
7
F27 Press blovked/stoped
Discharging temp.senor
F4
8
Td abnormal
9
F8 DC fan motor fault
10
F21 Te resistance fault
Ts resistance fault
11 F7
Ta resistance fault
12 F6
13
F25 Td resistance fault
The press suction tpmp.
F30
14
is too high
E7
15 Communication fault
16 F13
Lack of refrigerant
F14
Four-way valve fault
17
F11
18 Compressor out of step
Position detection
F28
19
ioop fault
E9
21 Indoor overload shutdown
21 E5 Indoor anti-frost stop
23 F5 Module temperature is
too high(95?)
24
Compressor software
F2
over current
F23
25 Phase current over current
F24 CT of bolt
27
37 External coil protection
F34
38
Module unknown fault
F35
39
Tcm resistance abnormal
F36
43
F41 High pressure protection
45
Low pressure protection
F42
46 Type matching exception
F43
Dirección: Parque Industrial Haier, Calle Qianwangang, Zona de Desarrollo Económico y Tecnológico, Qingdao 266555,
Shandong, R.P.C.
Contactos: TEL +86-532-88936943; FAX +86-532-8893-6999
Sitio web: www.haier.com
25
Diagnosis and Analysis
EEPROM chip damaged or data fault
Input over current occured been detected by PIM hardware
The AC current value exceeds the total current stop value in
EE.Error lock if appear 3 times within 30 minutes.
Communication failure between outdoor board and module
●
Send from the module.
The voltage of P/N exceed or below the EE voltage limmit of
the module board.
Send from the module,3 times within 30 minutes send to indoor board
After the press is started for10 minnutes,the Td temp.exceed the
temp. in EE.3 times within 30 minutes send to indoor board.
Error status confirm and lock if occurs 3 times within 30 minutes
Start up and test immediately
Start up and test immediately
Start up and test immediately
After starting up 10 minnutes to test, 3 times within 30 minutes
send to indoor board.
After starting up 10 minnutes to test, for 5 minutes,the Ts temp.
was detected to be over 40℃，then shut down compressor send to indoor
board.
Starting again in three minutes.
●
Communication failure between indoor unit and outdoor unit
The comressor runs continuously for more than 5 minutes and the
current value of outdoor unit is 0.6A-1.6A.Meet the cool/heat
conditions,flashing outdoor lights
●
Check the indoor unit coil temp.,after the heating compressor starts
up 10minutes,Tc≤0℃ last on one minute,then stop the compressor.
Deforsting and deforsting exit will not be detected within 5 minutes
From the module board
From the module board,Appear 3 times in 10 minutes and confirm
Compressor start up 2 minutes after the start of testing.If Tc≥ 63℃
last on 5 minutes the compressor stop.When the compressorstops for
●
more than 5 minutes and Tc ＜39℃，the compressor resumes
Compressor start up 2 minutes after the start of testing.If Tc≤ 1℃
last on 2 minutes the compressor stop.When the compressorstops for
m ore than 3 minutes and Tc＞9℃，the compressor resumes.
Module temperature is too high for protection.
From themodule board.1.35 times the total current.
If the phase current of the compressor is greater than the phase current
stop value in EE of the outdoor unit during runing,then compressor stop.
After 3 minutes compressor restart.
When the total current of the compressor is detected to be less than0.5A
and the compressor frequency is greater than 50Hz, theduration is one minute.
，
Then force the compressor to stop for 3 minutes,no fault confirmed
●
●
。