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