Vivax ACP-18COFM50AECI, Service Manual, Page: 38 / 64

For Console
NO. Malfunction Running lamp Timer lamp Defrosting lamp
1 Open or short circuit of T1 temperature sensor ☆ X X
2 Open or short circuit of T2 temperature sensor X X ☆
3
Communication malfunction between indoor and outdoor
units.
X
☆
X
4 Outdoor fan speed has been out of control X
☆
O
5 Indoor EEPROM malfunction
☆ ☆
X
6 IPM module protection
☆
X
☆
7
Open or short circuit of T3 or T4 temperature sensor or
Outdoor unit EEPROM parameter error
☆ ☆ ☆
8 Voltage protection
☆ ☆
O
9 Inverter compressor drive protection ☆ ◎ X
10 Indoor fan speed has been out of control.
☆
O
☆
11 Mode conflict
☆
X O
O(light) X(off) ☆ (flash at 5Hz) ◎ (flash at 0.5Hz)