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Self-diagnosis function
1. The malfunction indicator of indoor (see the operating LED of the INDOOR)
Error
The cause of malfunction
Code
Indoor TH. is short or open.
1
Outdoor TH. is short or open.
2
Temp. of Heat sink is over 95°C.
4
/Heat sink TH. is short or open.
Comunication error (serial
5
comunication).
DC peak error.
6
Running current is over-
7
loaded. (CT2)
Indoor fan lock error
8
(BLDC fan model)
Outdoor fan lock error
9
(BLDC fan model)
D-PIPE TH is short or open.
10
Error code
,
can't be operated unless the power cord is removed.
2. The malfunction indicator of outdoor (see the LED01M on the outdoor PCB ass'y)
Error
The cause of malfunction
Code
Indoor TH. is short or open.
2
Temp. of Heat sink is over 95°C,
4
or Heat sink TH. is shortor open.
Comunication error (serial
5
comunication).
DC peak error.
6
Running current is over-
7
loaded.
Outdoor fan lock error
9
(BLDC fan model)
D-PIPE TH is short or open.
10
Malfunction indicator
The operating LED will be blink-
ing once.
The operating LED will be blink-
ing twice.
The operating LED will be blink-
ing 4 times.
The operating LED will be blink-
ing 5 times.
The operating LED will be blink-
ing 6 times.
The operating LED will be blink-
ing 7 times.
The operating LED will be blink-
ing 8 times.
The operating LED will be blink-
ing 9 times.
The operating LED will be blink-
ing 10 times.
Malfunction indicator
The LED01M will be blinking
twice.
The LED01M will be blinking 4
times.
The LED01M will be blinking 5
times.
The LED01M will be blinking 6
times.
The LED01M will be blinking 7
times.
The LED01M will be blinking 9
times.
The LED01M will be blinking 10
times.
Troubleshooting Guide
The operating state
Keep operating state.
Keep operating state.
Restart compressor when Heat sink
Temp is 85°C below.
The operation is off(enable to restart
by remote controller).
Compressor will be turned off immediately.
(not enable to restart by remote controller)
Compressor will be turned off immediately.
(not enable to restart by remote controller)
The operation is off(enable to restart
by remote controller).
The operation is off(enable to restart
by remote controller).
Compressor will be turned off immediately.
(restart compressor when D-PIPE TH. is
recovred)
The operating state
Keep operating state.
Restart compressor when heat sink
Temp. is 85°C below.
The operation is off(enable to restart
by remote controller).
Compressor will be turned off immediately.
(not enable to restart by remote controller)
Compressor will be turned off immediately.
(not enable to restart by remote controller)
The operation is off(enable to restart
by remote controller).
Compressor will be turned off immediately.
(restart compressor when D-PIPE TH. is
recovered)
Service Manual 67
- Quick Links:
- Lg Model Name
- Schematic Diagram
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