1827. Maintenance(2)Slide the filter cover to the right and tighten each of thetwo knobs by turning them clockwise.NOTE:Be sure to clean both filters (left and front sides) to display the filterusage hours as accurate as possible.Cleaning the filter on the front side1. Remove the filter cover.(1) Loosen each of the two knobs by turning them counter-clockwise.• The knobs are not removable.• If the knob is too tight to turn, use a Phillips screw-driver.(2) Remove the filter cover by pulling it out.12Knob2. Remove the filter.Remove the filter by pulling it to the right.Filter3. Use a vacuum cleaner to vacuum all the dust from theinside of the filter.Get rid of dust in the accordion filter.NOTE:• Whenever you vacuum the filter, use the soft brush attachment tovacuum. This is to avoid damage to the filter.• Do not wash the filter with water. Doing so can result in damage tothe filter membrane and also cause clogging.
