Philips AC3420/10

Children must not play with the appliance; supervise children's cleaning. If the cord, adapter or appliance is damaged, stop using it and contact Philips. This appliance does not replace ventilation or a carbon-monoxide safety device.

1. 1

   Place it safely

   Use a dry, level surface with at least 20 cm clear around the appliance and 30 cm above it. Keep air openings clear and the surrounding area dry.

2. 2

   Unpack the filters

   With the appliance unplugged, remove the front cover and water tank. Remove all packaging from the FY3400 purification filter and FY3401 humidification filter. Fit the bracket around the humidification filter, then refit both filters, the cover and tank.

   
3. 3

   Connect the adapter

   Use the supplied adapter only. Connect it to the appliance first, then the wall socket.

4. 4

   Keep cleaning safe

   Switch off and unplug before cleaning, filling, moving or replacing filters. Use no abrasive, aggressive or flammable cleaners. Never put liquid on the purification filter or vacuum the particle sensor. Keep water out of the air openings and nearby sockets dry. Keep the appliance upright while cleaning.

1. 1

   Remove the filter

   Take the humidification filter out of the water tank.

2. 2

   Clean the tank

   Add water and a little mild washing-up liquid. Wipe the inside with a soft, clean cloth, then empty the tank into a sink.

3. 3

   Refit the filter

   Put the humidification filter back in the tank.

1. 1

   Remove the filter bracket

   Pull out the tank and lift the bracket away from the FY3401 humidification filter.

   
2. 2

   Soak for one hour

   Mix 24 g citric acid with 4 litres of water in a container. Soak the filter for 1 hour.

3. 3

   Rinse gently

   Rinse under a slowly running tap. Do not squeeze or wring the filter, or put it in a dishwasher or washing machine.

4. 4

   Refit the bracket

   Fit the bracket correctly around the filter, return it to the tank and slide the tank back into the appliance. Wash your hands thoroughly.

   

Every 2 months, or sooner: Sooner in dusty or very humid conditions

Clean more often in dusty surroundings. High humidity can leave condensation on the sensor and cause an incorrect poor-air-quality reading; clean it if this happens.

1. 1

   Open the sensor cover

   Open the air-quality sensor cover.

2. 2

   Clean and dry the sensor

   Clean the particle sensor with a damp cotton swab, then dry all parts thoroughly with a dry cotton swab.

3. 3

   Close the cover

   Close the sensor cover.

Philips recommends replacement every 6 months for optimal performance. A filter still in good condition may last longer, but replace it at least once a year. Replace a very dirty filter with dark spots before using the appliance again after a long break.

1. 1

   Remove the old filter

   Pull out the water tank. Remove the bracket from the FY3401 filter and discard the used filter.

2. 2

   Fit the new filter

   Unpack an original Philips FY3401 humidification filter. Fit the bracket correctly around it and return the tank to the appliance.

   
3. 3

   Wash your hands

   Wash your hands thoroughly.

1. 1

   Fill the tank

   Pull out the water tank and slowly add cold tap water, watching the level window. Stay below the maximum mark. Do not add fragrance, chemicals, hot water or groundwater.

2. 2

   Refit the tank

   Place the tank back correctly. A flashing orange humidification light means the tank needs to be seated correctly; a steady orange light means it needs water.

1. 1

   Remove the filter

   Pull off the front cover and take out the purification filter.

   
2. 2

   Vacuum the surface

   Use a vacuum cleaner on the filter's surface. Never wash it.

3. 3

   Refit and switch on

   Refit the filter and front cover, reconnect the adapter and press the power button.

4. 4

   Reset the cleaning reminder

   Hold the light-function and mode buttons together for 3 seconds. The cleaning alert disappears when the reset succeeds. You can also reset the cleaning time in the Air+ app.

   
5. 5

   Wash your hands

   Wash your hands thoroughly after handling the filter.

Replace promptly when the red alert appears. If left unchanged, the appliance can lock and stop working. Reset only after actually replacing the filter.

1. 1

   Replace the filter

   Remove the front cover, take out the used FY3400 filter and discard it. Remove all packaging from a new original Philips FY3400 filter, fit it and refit the cover. Do not wash, reuse or smell the used filter.

   
2. 2

   Switch on and reset

   Reconnect the adapter and press power. Hold the light-function and mode buttons together for 3 seconds, or reset the filter lifetime in the Air+ app. Check that the replacement alert disappears.

   
3. 3

   If replacing before the alert

   After fitting the new filter, switch off and unplug. Wait at least 10 seconds before reconnecting. Within 15 seconds after powering on, hold the light-function and mode buttons together for 3 seconds to reset the lifetime counter.

4. 4

   Wash your hands

   Wash your hands thoroughly after handling the filters.

1. 1

   Wipe away dust

   Wipe the inside and outside plastic surfaces and the air outlet with a soft, dry cloth.

1. 1

   Empty and clean

   Do not leave water in the reservoir while the appliance is unused. Clean the tank, humidification filter, appliance and purification-filter surface using their care guides.

2. 2

   Dry and store

   Let all parts air-dry thoroughly. Wrap the filters in airtight plastic bags and store the appliance and filters somewhere cool and dry. Wash your hands after handling filters.

3. 3

   Check before reuse

   Clean the appliance before using it again. Check the humidification filter; replace it if it is very dirty with dark spots.