You can use the ON/OFF button a of the indoor unit to operate the air conditioner when the remote control is unavailable.
Open the front cover (Type2) or horizontal vane (Type1).
Press the ON/OFF button a.
The stepping motor may be broken, if the horizontal vane opens rapidly.
The fan speed is set to high by default.
The feature may be changed according to the type of model.
The temperature cannot be altered when using this emergency ON/OFF button a.
For cooling-only models, the temperature is set to 22 7
For cooling & heating models, the temperature is set from 22 7 to 24 7