Error contents
POWER/
MODE
ERROR
PUMP
DOWN
LOW NOISE PEAK CUT
L1 L2 L3 L4 L5 L6
E: 74.↓. Outdoor temperature
thermistor error (Outdoor unit)
■
2
● ■
7
■
4
○ ○ ○ ●
E: 77.↓. Heat sink thermistor error
(Outdoor unit) (24/30/36 model)
■
2
● ■
7
■
7
○ ○ ○ ●
E: 84.↓. Current sensor error (Outdoor
unit)
■
2
● ■
8
■
4
○ ○ ○ ●
E: 86.↓. High pressure switch error
(Outdoor unit) (24/30/36 model)
■
2
● ■
8
■
6
○ ● ○ ○
E: 94.↓. Trip detection (Outdoor unit)
■
2
● ■
9
■
4
○ ○ ○ ●
E: 95.↓. Compressor motor control
error (Outdoor unit)
■
2
● ■
9
■
5
○ ○ ○ ●
E: 97.↓. Outdoor unit fan motor error
(Outdoor unit)
■
2
● ■
9
■
7
○ ○ ● ●
E: 99.↓. 4-way valve error (Outdoor
unit)
■
2
● ■
9
■
9
○ ○ ○ ●
E: A1.↓. Discharge temperature error
(Outdoor unit)
■
2
● ■
10
■
1
○ ○ ○ ●
E: A3.↓. Compressor temperature error
(Outdoor unit)
■
2
● ■
10
■
3
○ ○ ○ ●
E: AC.↓. Heat sink temperature error
(Outdoor unit) (24/30/36 model)
■
2
● ■
10
■
12
○ ○ ● ●
●
: Light on
○
: Light off
■
(n) : n Times blinking
1-4. Error code table (Outdoor unit) - (03-4) - 1. Error code
TROUBLESHOOTING
TROUBLESHOOTING