Sharp KC-150U KC-C150U Operation Manual - Page 20

CARE AND MAINTENANCE HUMIDIFYING FILTER Care Cycle Once a month or when the Filter Indicator Light is on. Frequency of maintenance cycle will depend on the hardness or the impurities of the water that you use; the harder the water the more often descaling will be necessary. Pay attention not to spill water when cleaning the filter. 1 Remove the Water Tank and Humidifying Tray. Humidifying filter Humidifying Tray Water Tank Humidifying Tray 5 Rinse the Humidifying Filter repeatedly with lukewarm water to remove all the solution residue. Inadequate rinsing may cause odor and affect the performance and/or appearance of the unit. * Do not scrub the Humidifying Filter, rinse gently under lukewarm water only. 2 Remove the Humidifying Filter from the Humidifying Tray. Avoid spilling water from the Humidifying Tray. 3 Preparing the descaling solution. Citric acid, available at some drugstores, or 100% bottled lemon juice are used for descaling. Choose either one to use, and prepare the descaling solution. Dissolve 3 teaspoons of citric acid and 2 1/2 cups of lukewarm water in a suitable container, and stir well. 100% bottled lemon juice can be used for descaling. Use only 100% bottled lemon juice with no pulp (strain juice if necessary). Combine 1/4 cup lemon juice and 3 cups of lukewarm water in a container large enough to hold the Humidifying Filter and stir well. 4 Pre-soak the Humidifying Filter in the solution for 30 minutes before cleaning. When using lemon juice, it is recommended to presoak longer than citric acid. 6 Attach the Humidifying Filter to the Humidifying Tray, and replace the Humidifying Tray in the unit. •The Humidifying Filter will not fit if placed in backwards. Be sure there is no gap between the Humidifying tray and the unit when the Humidifying Tray is replaced in the unit. The unit may not operate properly if the Humidifying Tray is not properly replaced in the unit. •When not using the unit for a long period of time, dry the Humidifying Filter completely before replacing. 7 Plug in the unit, turn power ON, and press the Filter Reset Button on the display more than 3 seconds to reset. You may notice reddish-brown or white deposits forming on the surface of the Humidifying Filter. These impurities (calcium, etc.) are due to the impurities contained in tap water; this is not a defect. Replace the Humidifying Filter when it is covered completely in white deposits. E-18