02-03
0.5sec 0.5sec 2sec
ON
OFF
1. ERROR DISPLAY
2. ERROR DISPLAY METHOD
Outdoor LED Blink (1 to 22 times) 0.5sec ON / 0.5sec OFF blinking
2-1-3 OUTDOOR UNIT DISPLAY
2-way valve thermistor error
(for Indoor unit A)
Serial communication error
(Outdoor unit to Indoor unit C)
Serial communication error
(Outdoor unit to Indoor unit D)
Serial communication error
(Outdoor unit to Indoor unit B)
16
Error Contents
1 time
1 time
1 time
1 time
2 times
OFF
OFF OFF
OFF OFF
OFFOFF
OFF
OFF
OFF
OFF
OFF
OFFOFF
OFF
18
3 times
OFFOFF
OFF
4 times
OFFOFF
OFF
5 times
OFFOFF
OFF
7 time
s
OFF
OFF
8 times
OFF
OFF
9 times
OFF
OFF
10 times
OFF
OFF
11 times
OFF
OFF
12 times
OFF
OFF
13 times
OFF
OFF
14 times
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
15 times
OFFOFF
OFF
17 times
OFFOFF
OFF
2
Trouble
shooting
LED1 LED2 LED3 LED4
Serial communication error
(Outdoor unit to Indoor unit A)
Indoor unit capactiy error
Outdoor unit PCB microcomputer
communication error
Outdoor unit fan motor error
Over current error
Compressor control error
Compressor thermistor error
Heat sink thermistor error
High pressure switch 1 error
High pressure switch 2 error
Discharge thermistor error
Heat ex. thermistor error
Outdoor thermistor error
2-way valve thermistor error
(for Indoor unit B)
2-way valve thermistor error
(for Indoor unit C)
2-way valve thermistor error
(for Indoor unit D)
5 times
5 times
5 times
OFF
OFF OFF
OFF OFF
OFF
OFF
OFF
OFF
3-way valve thermistor error
(for Indoor unit A)
3-way valve thermistor error
(for Indoor unit B)
3-way valve thermistor error
(for Indoor unit C)
3-way valve thermistor error
(for Indoor unit D)
6 times
OF
FOFF
OFF
6 times
6 times
6 times
OFF
OFF OFF
OFF OFF
OFF
OFF
OFF
OFF
IPM error
Discharge temp. error
18 times
OFFOFF
OFF
Compressor temp. error
19 times
OFFOFF
OFF
4-way valve error
20 times
OFFOFF
OFF
Outdoor unit PCB model information
error
Active filter error
21 times
OFFOFF
OFF
22 times
OFFOFF
OFF
: Flashing
19
20
21
17
22
23
4
24
25
15
26
13
28
29
27
13
14
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