wilfa HU-400WW Nature Humidifier Instruction Manual

NATURE
HU-400WW
Instruction manual

IMPORTANT SAFETY INSTRUCTIONS

• Please follow all the safety precautions listed below for safety and to reduce the risk of injury or electrical shock.
• This humidifier can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the humidifier in a safe way understand the hazards involved. Children shall not play with the humidifier. Cleaning and user maintenance shall not be made by children without supervision.
• Before using this humidifier ensure that the voltage of your electricity supply is the same as that indicated on the rating plate of the humidifier.
• Always place the humidifier on a hard, flat, and level surface. Avoid exposure to direct sunlight and always keep it away from walls and heat sources such as stoves, radiators, etc. Warning: The humidifier may not work correctly if it is not placed on a level surface.
• Do not insert or remove the electric plug on the humidifier with wet hands.
• If the mains cable is damaged it must be replaced by the manufacturer, its service agent, or a similarly qualified person in order to avoid a hazard.
• To reduce the risk of electric shock, do not remove screws. The humidifier does not contain any user-serviceable parts. Please leave all maintenance work to qualified personnel.
• Fill the water tank with fresh, distilled, or demineralized water. Do not drop any other liquid into a water tank or main base. Do not run the humidifier when there is no water in the water tank.
• Do not shake the humidifier as this might cause the water to spill over into the base of the humidifier.
• Never touch the water or components while the humidifier is in operation.
• If there is an unusual smell when it is being used as described in this manual, switch the humidifier off, unplug it and have it examined by your dealer.
• Do not pour hot water into the water tank, i.e. at a temperature in excess of 40°C.
• Do not immerse the humidifier or the mains cable or plug in water or other liquids.
• Never scrape the transducer with a hard tool. The humidifier must be cleaned regularly. To do this, refer to the cleaning instructions in this manual.
• If you spill any liquid into the humidifier, it can cause serious damage. Switch it off at the mains immediately. Withdraw the mains plug and consult your dealer.
• Disconnect the humidifier from the power supply when not in use and before cleaning.
• Ensure that the mains cable does not touch any hot surface and that it does not overhang a table edge.
• Never use this humidifier in a room where aerosol products (sprays) are used or in a room where oxygen is being administered.
• Do not put items of clothing or towels on top of the humidifier. If the nozzle is obstructed, this may cause the humidifier to malfunction.
• When moving the humidifier, lift it by the base and not by the water tank.
• Do not use the humidifier if the air in the room is already sufficiently humid.
• The ideal relative humidity level for human comfort is in fact between 45% and 65%. Excess humidity shows up in the form of condensation on cold surfaces or cold walls in the room. To measure the room’s humidity correctly, use a hygrometer available in most specialist shops and hypermarkets.
• This product is intended for indoor, non-industrial, non-commercial, household use only.
• Unplug the appliance during filling and cleaning.
• Do not permit the area around the humidifier to become damp or wet. If dampness occurs, turn the output of the humidifier down. If the humidifier output volume cannot be turned down, use the humidifier intermittently. Do not allow absorbent materials, such as carpeting, curtains, drapes, or tablecloths, to become damp.
• Never leave water in the reservoir when the appliance is not in use.
• Empty and clean the humidifier before storage. Clean the humidifier before next use.
• Microorganisms that may be present in the water or in the environment where the appliance is used or stored, can grow in the water reservoir and be blown in the air causing very serious health risks when the water is not renewed, and the tank is not cleaned properly every 3 days.
• Never leave water in the reservoir when the appliance is not in use.
• Clean the water every three days.
• Be aware that high humidity levels may encourage the growth of biological organisms in the environment.
• Do not permit the area around the humidifier to become damp or wet. If dampness occurs, turn the output of the humidifier down. If the humidifier output volume cannot be turned down, use the humidifier intermittently. Do not allow absorbent materials, such as carpeting, curtains, drapes, or tablecloths, to become damp.
• Unplug the appliance during filling and cleaning.
• Empty and clean the humidifier before storage. Clean the humidifier before next use.

PRODUCT OVERVIEW

1. Top cover
2. Fog cover
3. Water tank
4. Air outlet| 5. Buoy
6. Button
7. Transducer PCB
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BEFORE USE

• Put the humidifier in the room 30 minutes before starting it.
• It is recommended to use the humidifier when the temperature is under 20°C, and the relative humidity is less than 80%RH.
• Use clear water not over 40°C.
• Check the water tank, make sure it is clear.
• Place the humidifier on a flat surface.

WATER FILTER

• Ceramic balls can soften the hard water.
• Ceramic filters can eliminate the strange smell in the water.

AROMA BOX

1. Press out the aroma box from the base.
2. Use water-soluble aroma oil and drop on to the sponge.
3. Put the aroma box back into the humidifier, the aroma function will remain on when the humidifier is running.
4. To stop the aroma function or when storing the humidifier, clean the sponge in the aroma box.
5. Only drop the aroma oil into aroma cotton. Do not drop any liquid except clean water into the water tank or basin.

USE

• Fill the water into the water tank from the top cover. Or take out the water tank and fill water directly into the water tank. Afterward, put the water tank back on the main base.
• Check if the rated voltage meets the input voltage and plug into the socket. A humidifier will go into standby mode.
• Touch the ON/OFF button, if the water tank is empty, the button will be red. Touch the button again and the humidifier will turn off.
• If there is enough water in the water tank, and you press the button, the humidifier works in the lowest speed with the button showing purple. If you touch the button again the humidifier will increase the speed, and the button turns green. At the third touch, the humidifier starts at the highest speed, and the button turns blue. Press one more time to turn the humidifier off. There is a total of 3 speeds.
• Each time you touch the button it will beep. When the water tank is empty, the humidifier will make 3 beeps as a warning, the button will turn red, and the humidifier will stop working. Refill the water tank, touch the button, and it will restart.
• When the humidifier is on, do not lift the water tank up from the main base, this will turn the humidifier off. Put the water tank back, and the humidifier will work in the previous mode.

PLACEMENT

• Place the product on firm, flat surface.
• The humidifier should be placed on a flat horizontal surface and keep it steady.
• Do not place the product near or close to any heat sources.
• The humidifier should be far away from any heat sources, such as stoves or fireplaces. Do not expose the product to direct sunlight.
• Do not place the product near or close to furniture or electric appliances.
• The mist outlet from the humidifier should not be directed towards furniture and electronic appliances, to avoid damage.
• Particles in water, such as calcium, can be part of the vapor and be deposited on objects in the vicinity.
• It is recommended that the unit be placed on a table or other surface at least 70 cm above the floor level, to ensure that the vapor will be optimally distributed throughout the room.
• Air draft and temperature changes can impact the distribution of the vapor. To avoid water damage it’s recommended to always check for moist accumulations on the floor or other nearby surfaces.

TROUBLESHOOTING

humidifier into a powered electrical socket.
Power cord is damaged.| Immediately stop using it and contact Customer Support.
A humidifier is defective or malfunctioning.| Press the power button to turn

it on.

Power lamp is on when switched on, but no mist comes out.| A humidifier is not turned on.| Press the power button to turn it on.
The target humidity is reached.| Increase the target humidity or change mode.
The water shortage indicator is on.| No water in the tank.| Refill the water tank wait at least 1 minute.
The water level is low.
The water level required has not yet reached the vaporization compartment.| Wait at least 1 minute.
The water tank isn’t well-positioned.| Check the positioning of the tank on the base.
The humidifier isn’t on a flat surface| Check the positioning of the humidifier.
Humidifier produces an unusual smell| A humidifier is new.| Take out the water tank, open cover, let it stay 12 hours in cool position.
Dirty water or water sitting too long.| Clean water tank, fill with clear water.
The residual smell from diffusing aroma oil on the aroma cotton.| Remove the aroma cotton, rinse it under clean water and allow it to dry.
A humidifier makes a loud or unusual sound.| Resonant in water tank when water is too low.| Fill water into water tank.
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Humidifier is on an unstable surface.| Move the humidifier to a stable flat surface.
The water tank is positioned incorrectly.| Turn off and unplug the humidifier, then align the water tank cover with its respective opening in the inner chamber.
Humidifier is malfunctioning.| Immediately discontinue use and contact Customer Support.
The humidification capacity is too low| There is natural or artificial air replacement in the room which interferes the increase of  %RH.| Check if doors and windows are closed.
Check if there is no air conditioning working in the room.
The air inlet grids and nozzle could be blocked.| Remove any blocking items from the grids and the nozzle.
Too much scale in the main base or water tank.| Clean transducer.
The humidity selected rate is too low.| Increase mist output speed.
Increase humidity setting rate.
Water is too dirty, or water is kept too long in the tank.| Clean water tank, change to fresh clear water.
There is condensation in the room.| The room temperature is too low.| Heat the room up.
The mist suddenly stops coming out.| The mist suddenly The water shortage indicator is on.| Refill water tank.
Control button does not work| Hands are too wet when operating the control panel.| Keep hands dry while operating the control panel.
Humidifier has malfunctioned.| Contact Customer Support.
White dust appears around the humidifier.| Water being used has a high mineral content.| Use distilled water with the humidifier. If distilled water is not available, use purified or filtered water.
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Humidifier was not properly cleaned after last use.| Clean humidifier.
Mist is coming out from the base.| Water tank is not positioned correctly.| Turn off and unplug the humidifier, then align the water tank cover with its respective opening in the inner chamber.
Mist fog coming out from around nozzle.| There are apertures between the nozzle and water tank.| Reposition the cover and check if the nozzle is well plugged in the cover.

The following is not considered faulty operation:

• If your water is very hard (containing abnormally high levels of minerals) the humidifier may produce white dust. This is not a malfunction. The solution would be to clean the filter more often or use softer water.
• If you stand very close to the humidifier, you will hear the gurgling sound of water. This is normal.
• The humidifier operates very quietly but it is not completely silent. Noise levels less than 35dB(A) is considered normal.

MAINTENANCE

If the water is hard, meaning that the water contains too much calcium and magnesium, it can cause a “white powder” problem and leave heavy scales on the inner surface of the main base, transducer, and inner surface of the water tank. Scales on the surface of the transducer will let the humidifier work improperly.
Use cold boiled water or distilled water.
Empty the tank and refill every third day. Before refilling, clean it with fresh tap water or cleaning agents if required by the manufacturer. Remove any scale, deposits, or film that has formed on the sides of the tank or on interior surfaces and wipe all surfaces dry.
Empty and clean the humidifier before storage. Clean the humidifier before next use.

HOW TO CLEAN THE TRANSDUCER

• Clean with clean water of citric acid if there is a scale in it.
• Brush off the scale from the surface.
• Rinse the transducer with clean water.

HOW TO CLEAN THE BASE

• Clean the inner surface of the main base with a soft cloth or use citric acid if there is a scale in it.
• If the scale covers the security switch, drop some citric acid on it and let it sit for 2-5 minutes on the scale and clean it with a brush.
• Rinse the water tank with clean water.

HOW TO CLEAN THE CERAMIC FILTER

• Clean and activate the ceramic ball after using 1000L water. Depending on the water quality. If the ceramic ball is dirty it needs to be cleaned more frequently.
• It can be dipped into vinegar for 5 minutes, then rinse it with water.
• Put the filter under the sun for 4-6 hours to dry, overnight.

GUARANTEE

Wilfa issues a 5 year guarantee on this product from the day of purchase is done. The guarantee covers production failure or defects that arise during the guarantee period. Your purchase receipt works as proof towards the retailer if claiming your guarantee.
The guarantee is valid only for products that are bought and used in private households. The guarantee is not valid if the product is used commercially. The guarantee is not valid if the product is misused, used by negligence, if not following instructions given by Wilfa, if modified or if unauthorized reparation is done. The guarantee is also not valid for normal wear of the product, misuse, lack of maintenance, use of wrong electrical voltage or:

• Not descaled according to the instruction manual
• Overloading of product
• Parts that are normally worn down
• Parts you can expect are being replaced regularly (e.g. filter, battery etc.)

PRODUCT SPECIFICATIONS

220 V~240 V~50/60 Hz
4L
300ml/H

SUPPORT AND SPARE PARTS

For support please visit us at wilfa.com, and see our customer service/support page. Here you will find frequently asked questions, spare parts, tips and tricks and all our contact information.

RECYCLABILITY

This marking indicates that this product should not be disposed of with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmentally safe recycling free of charge.

AS Wilfa Nydalsveien 24, 0484 Oslo, Norway

BEYOND EXPECTATIONS

HU-400WW_20_01

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