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2. TROUBLESHOOTING
02-01
2-1 ERROR DISPLAY
Please refer the flashing pattern as follows.
Indoor Unit : ASU09/ 12RL2
The Operation, Timer and Economy lamps operate as follows according to the error contents.
Manual auto switch error
Room temp. sensor error
Indoor unit PCB model information error
Error Contents
Continuous
Continuous
4 times
Continuous2 times
3 times
3 times
5 times
Continuous1 times1 times
Trouble
shooting
(Green)
(Orange)
(Green)
1 times
Serial communication error
Indoor unit fan motor error
Indoor unit Heat Ex. middle temp.
sensor error
Continuous4 times 2 times
Continuous1 times5 times
Outdoor unit main PCB model
information error or communication error
Continuous
2 times6 times
Continuous
Continuous
4 times
7 times
6 times
1 times
Continuous
7 times 3 times
Continuous
7 times 4 times
Continuous
PFC circuit error
Discharge temp. sensor error
Outdoor unit Heat Ex. liquid temp.
sensor error
Outdoor temp. sensor error
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Continuous
8 times
4 times
Current sensor error
Continuous
Continuous
Continuous
5 times9 times
Compressor rotor position detection error
Continuous
7 times9 times
Outdoor unit fan motor error
4 times9 times
9 times 9 times
4-way valve error
1 times10 times
Discharge temp. error
Trip detection
Continuous
5 times6 times
Trip terminal L error
Indoor Unit Display
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Operation
Timer
Economy