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.
Indoor and outdoor cleaning
Clean it with warm and wet cloth or with neutral detergent, then wipe it dry with clean and soft cloth.
If air conditioner is very dirty, clean it with cloth soaked in neutral detergent, then wipe off the detergent with clean water.
Don't use water higher than 40
C, which will cause discoloring and deformation. 
Don't use insecticide or other chemical detergents.
After season maintenance
Let the unit run in Fan mode for half a day in a fine weather to dry completely the unit inside.
Turn off the unit and pull out power plug. Otherwise, there might be certain power consumption even if the unit is stopped.
Clean air filter and indoor unit, cover outdoor unit after cleaning.
Before season maintenance
Check if there are obstacles at inlet and outlet of indoor and outdoor unit, whick will reduce unit efficiency.
Don't fail to attach air filter after making sure it is cleaned. Dust will enter into unit causing damages or faults if it is running without air filter.
To protect compressor at start, please connect external power supply to the unit 12 hrs prior to starting. Also please keep the power supply switch ON during the whole season.
10
