Maintenance
Disconnect power supply
Don't touch it with wet hand
Don't wash with hot water or solvent to clean the unit
Don't splash water directly on indoor unit.
This could be very dangerous
Don't spray any paint or insecticide on the unit.
This will cause damage or even fire accident.
Air filter cleaning
Pull it out from top as shown in Fig.
Use water or vacuum cleaner to clean it. If it is extremely dirty, wash it with neutral detergent or soap water.
Wash it with clean water and install it after complete dry.
Caution:
Don't use hot water over 40 
C, as this may cause damage to air filter. Wipe air filter carefully.
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