Troubleshooting
Electrical Control System 125
2.2 Indoor unit malfunction
For Console(12K)
NO. Malfunction Running lamp Timer lamp Defrosting lamp
1 Refrigerant Leakage Detection
☆
☆ ◎
2 Open or short circuit of T1 temperature sensor ☆ X X
3 Open or short circuit of T2 temperature sensor X X ☆
4 Indoor / outdoor units communication error X ☆ X
5 Outdoor fan speed has been out of control X ☆ O
6 Indoor EEPROM malfunction ☆ ☆ X
7 IPM module protection ☆ X ☆
8
Open or short circuit of T3 or T4 temperature sensor or
Outdoor unit EEPROM parameter error
☆ ☆ ☆
9 Over voltage or over low voltage protection ☆ ☆ O
10 Top temperature protection of compressor ☆ O X
11 Inverter compressor drive protection
☆ ◎
X
12 Indoor fan speed has been out of control.
☆
O ☆
O(light) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For console type(
18K)
NO. Malfunction Running lamp Timer lamp Defrosting lamp
1 Indoor EEPROM malfunction ☆ ☆ ☆
2 Indoor fan Speed has been out of control. ☆ X ☆
3 Open or short circuit of T1 or T2 temperature sensor ☆ ☆ X
4 Indoor / outdoor units communication error X ☆ X
5 Outdoor unit malfunction X X ◎
X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For Comp
act cassette(12K)、A5(12K):
NO. Malfunction
Defrosting
lamp
Alarm
lamp
Running lamp
Timer
lamp
Display(digital
tube)
1
Open or short circuit of T1 temperature
sensor
X X ☆ X E0
2
Open or short circuit of T2 temperature
sensor
☆ X X X E1
3 Indoor / outdoor units communication error X X X ☆ E2
4
Full-water malfunction X ☆ X X E3
5
Indoor EEPROM malfunction X X ☆ ☆ E4
6 IPM module protection X O ☆ X E5
7
Open or short circuit of T3 or T4 temperature
sensor or Outdoor unit EEPROM parameter
error
X X ☆ O E6
8 Outdoor fan speed has been out of control ☆ X ☆ O E7
9 Refrigerant Leakage Detection ☆ ☆ O X EC
10 Over voltage or over low voltage protection X O ☆ O P0
11 Top temperature protection of compressor O X ☆ X P1
To Next Page
Loading...
