YHUJYH028BARXA-X YHUJYH036BARXA-X YHUJYH048BARXA-X YHUJYH048BASXA-X
YHUJYH048BASXA-Y YHUJYH060BASXA-X
PRODUCT DIAGNOSIS PROCEDURE
EEPROM faulty
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Over current protection in course of
compressor frequency going down
detected by software
Non-resumable
Resumable
Module abnormal, if it occurs 3 times in 1 hour, confirm the failure
protection of over current in course
of compressor fixed speed operation
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Module temp. too high or module
temp.sensor abnormal
Non-resumable
Non-resumable
Communication abnormal between
connecting board and module
It can not get the feedback from module after communicating for 4
minutes
Resumable
Compressor overcurrent
If it occurs 3 times in 1 hour, confirm the failure, the former
twice will not alarm
Non-resumable
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
Compressor blocked or abnormal
operation
not alarm
Non-resumable
After compressor starts
10 seconds
later
up, if TD is over 115
℃
compressor stops, if it occurs 3 times in 1 hour, confirm the failure
Protection of discharging temp. too
high
Non-resumable
DC fan motor faulty
If it occurs 3 times in 1 hour, confirm the failure, the former
twice will not alarm
Non-resumable
Sensor is detected below 20 or over 1000 for 60 seconds, but in
cooling mode,this sensor failure will not be dealt with,and in
defrosting or within 6 minutes after defrosting,it will not alarm.
Outdoor defrosting temp. sensor
abnormal
Resumable
Suction temp.sensor abnormal
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Resumable
Ambient temp. sensor abnormal
Sensor is detected below 20 or over 1000 for 60 seconds, but in
frosting or within 6 minutes after defrosting, it will not alarm
Resumable
Discharging temp. sensor abnormal After compressor running for 3 minutes, Sensor is detected below
20 or over 1000 for 60 seconds
Resumable
Indoor unit can not be inspected for 4 minutes continuously
or indoor slave unit malfunction in MAXI split system
Resumable
communication between indoor
and outdoor abnormal
Lack of refrigerant or discharging
pipe blocked
If it occurs 3 times in 1 hour, confirm the failure.
Non-resumable
4-way vavle converse abnormal
If it occurs 3 times in 1 hour, confirm the failure.
Non-resumable
Over current in course of compr-
essor frequency going down
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Non-resumable
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Over current protection in course
of compressor fixed speed opera-
tion detected by software
Non-resumable
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Over current protection in course
of compressor frequency going up
down detected by software
Non-resumable
Non-resumable
If it occurs 3 times in 1 hour, confirm the failure, the former twice will
not alarm
Without connection to compressor
High voltage protection for
module
From moudle board
Resumable
Resumable
From module board
Low voltage protection for module
Communication abnormal among
modules
It can not detect the input signal for 2 minutes
Resumable
Sensor is detected below 20 or over 1000 for 60 seconds, but in
defrosting or within 6 minutes after defrosting, it will not alarm
Mid-condenser temp. sensor
abnormal
After compressor running for 3 minutes, if switch is detected
unconnected for 30seconds, it alarms, if it occurs 3 times in 1 hour,
confirm this failure, if it occurs 3 times in 1 hour, confirm the failure,
but in defrosting or within 6 minutes after defrosting, it will not alarm
Low pressure switch abnormal
High pressure switch abnormal
After compressor running for 3 minutes, if switch is detected uncon-
nected for 30seconds, it alarms, if it occurs 3 times in 1 hour, confirm
this failure, or if Tcm is over 68 degree for 10 seconds for 3 times
Non-resumable
Note: The flash times of outdoor mainboard(ECU) LED1 indicates the malfuction code. for example, LED1 flash 3 times, the malfunction code is 3.
The flash times or malfuction code of indoor unit can also indictes the malfuction code too.the method to confirm please refer to indoor unit manul.
Non-resumable
Malfunction
Code
Trouble Description
Analyze and diagnose
Remark
0150509517
1
2
3
4
5
7
8
9
10
44
43
39
38
29
28
27
24
19
18
17
16
15
13
12
11
23
Resumable
242
Summary of Contents for YHKMXH009BARX-FX
Page 23: ...3 Dimension 21 ...
Page 24: ...22 ...
Page 25: ...4 Piping diagram Liquid pipe Gas pipe Filter Filter EEV Fan Indoor heat exchanger 23 ...
Page 37: ...9 Installation 35 ...
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Page 43: ...41 ...
Page 56: ...3 Piping diagram Liquid pipe Gas pipe Filter Filter EEV Fan Indoor heat exchanger 54 ...
Page 67: ...7 Installation YHFMXH012 24BARX FX 65 ...
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Page 75: ...28K 60K 73 ...
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Page 104: ...3 Dimension 102 ...
Page 105: ...YHGJXH048BARX GX S YHGJXH060BARX GX S 103 ...
Page 106: ...3 Piping diagram Liquid pipe Gas pipe Filter Filter EEV Fan Indoor heat exchanger 104 ...
Page 123: ...7 Installation For AD09 24LS1ERA AD09 24SS1ERA 121 ...
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Page 129: ...YHEJXH028BARX GX S YHEJXH036BARX GX S YHEJXH048BARX GX S 127 ...
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Page 134: ...For YHGJXH048BARX GX YHGJXH060BARX GX 132 ...
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Page 146: ...2 Dimension 144 ...
Page 156: ...4 Wiring connection YJU3YH019BARXA X 154 ...
Page 186: ...9 Maintenance WARNING CAUTION 184 ...
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Page 190: ...Items to Be Checked 188 ...
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Page 202: ...For YJU3YH019BARXA X YJU4YH025BARXA X YJU4YH030BARXA X YJU5YH034BARXA X YJU5YH045BARXA X 200 ...
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Page 206: ...M 204 ...
Page 207: ...205 ...
Page 208: ...206 ...
Page 209: ...R 207 ...
Page 210: ... 25 40 0 208 ...
Page 211: ...209 ...
Page 213: ...PCB 0151800175 YH3MXH009BARX GX YH3MXH012BARX GX YH3MXH018BARX GX YH3MXH024BARX GX 211 ...
Page 221: ...PCB 0011800241C 219 ...
Page 222: ...PCB 0151800054A 220 ...
Page 223: ...PCB 0151800076 PCB 0151800075 221 ...
Page 224: ...Power module 0010400352C Power module 0150400908 222 ...
Page 225: ...Power module 0150400644A Power module 0150400939 223 ...
Page 226: ...Power module 0151800105 224 ...
Page 227: ...Power module 0150400643B Filter board 0150400699 225 ...
Page 228: ...Filter board 0010452726 Filter board 0150400567 Dip switch setting 226 ...