LG LCN340CP Service Manual - Page 40
Troubleshooting CH03
 |
View all LG LCN340CP manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 40 highlights
Troubleshooting Guide Troubleshooting CH03 Display code Title Cause of error 03 Communication Wired R/C • Open / Short • Wrong connection Check point & Normal condition • Connection of wire • Main PCB Volt. DC12V • Noise interference Wired R/C 12V S GND Indoor Unit 12V S GND 12Vdc V 12Vdc V Check the Volt. Check the Volt. Check Point 1. Check the wire connection. (Open / Short) ¡ Repair the connection 2. Check the soldering state of connector. (Soldered poorly) ¡ Repair or Change the PCB. 3. Check the volt. Of main PCB power source. (DC 12V, DC 5V) ¡ Repair or Change the main PCB. 4. Check the installation of wired remote controller. (Noise interference) ¡ Adjust the state of installation 40 Ceiling Cassette Air Conditioner
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35 -
36 -
37 -
38 -
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
 |
 |
40
Ceiling Cassette Air Conditioner
Troubleshooting Guide
Troubleshooting CH03
Check the Volt.
Indoor Unit
V
12Vdc
12V
S
GND
Check the Volt.
Wired R/C
V
12Vdc
12V
S
GND
03
Communication
Wired R/C
•
Open / Short
•
Wrong connection
•
Connection of wire
•
Main PCB Volt. DC12V
•
Noise interference
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Check the wire connection.
(Open / Short)
→
Repair the connection
2. Check the soldering state of connector. (Soldered poorly)
→
Repair or Change the PCB.
3. Check the volt. Of
main PCB power source. (DC 12V, DC 5V)
→
Repair or Change the main PCB.
4. Check the installation of wired remote controller. (Noise interference)
→
Adjust the state of installation