Philips AC4002 manual Filter replacement, Filter maintenance, English

English 17

3Clean the air quality sensor, the dust inlet and the dust outlet with a lightly moistened cotton swab.

4Dry them with a dry cotton swab.

5Reattach the air quality sensor cover.

Filter replacement

Filter maintenance

When one of the filters is almost full and has to be cleaned or replaced, the corresponding light or lights (the pre-filter cleaning light or one of the filter replacement lights together with the ‘REPLACE FILTER’ light) start to flash.You then have to clean or replace this filter.

This air cleaner is also equipped with the HealthyAirProtect Lock feature to ensure that the filters are in optimal condition when the appliance is operating. When you do not replace filter 2 (AC4004 only), filter 3 and/or filter 4, the appliance stops operating and the appliance is locked. When the appliance is locked, the filter replacement light of the filter concerned and the ’REPLACE FILTER’ light light up continuously.

Filter cleaning light and filter replacement lights

The filter cleaning light and the filter replacement lights indicate which filter has to be cleaned or replaced.

-- Filter cleaning light 1 flashes: you have to clean filter 1 (pre-filter). See chapter ‘Cleaning’ for further instructions.

-- Filter replacement light 2 and the ‘REPLACE FILTER’ light flash: filter 2 (multi-care filter, AC4004 only) has to be replaced.