9. Troubleshooting
9.1 Indoor unit error display
Operation lamp
Auto lamp
Timer lamp
Failure
☆
☆
☆
Over current protection occurs 4 times
☆
X
☆
EEPROM error
X
X
☆
The T1 sensor is open circuit or short circuit
☆
X
X
The T2 sensor is open circuit or short circuit
X
☆
X
Indoor / outdoor units communication error
O
（
light
）
X
（
off
）
☆（
flash
）
