-٢٧-8. CARE AND CLEANINIG8.1 Cleaning Return Air Grille and Air FilterWarning : Disconnect the electrical power supply before cleaning return air grille and air filter.Removal steps of return air grille and air filter1. Unscrew the return air grille on both sides, hold both sidesof the grille and pull out the grille.2. Take out the air filter.Cleaning steps of return air grille and air filter1. The return air grille can be wiped with water or a clothdipped water. Wash it with water and dry it in a cool place.2. Use a vacuum cleaner to remove the dust or wash the air filter with water,and dry it in the shadow.Installation steps of air filter and return air grilleInstallation process of the air filter and return air grille is the reverse of the removal process.CAUTIONS: Make sure nothing has been forgotten or fallen into the fan before installing the return air grille. Before operating the air conditioner again, check that air filter and return air grille in their placeinside the air conditioner.Air FilterScrewReturn Air Grille