AD 7974 - Humidifier ADLER - Free user manual and instructions

Product type	Ultrasonic humidifier
Brand	Adler
Model	AD 7974
Water tank capacity	5.5 liters
Power	24 W
Power supply	220-240 V ~ 50-60 Hz
Main functions	Timer (2/4/8 h), target humidity setting (30-80%), night mode, plant mode, aromatherapy, humidity level display
Control type	Touch with LED screen
Indicators	Water level, ambient humidity, humidification intensity
Maintenance and cleaning	Empty and clean the tank every 3 days; descale the transducer with a citric acid solution
Filter	Removable filter included
Safety	Automatic shut-off in case of water shortage, overheat protection, recommended use of a residual current device (30 mA)
Materials	Durable plastic, suitable for domestic use
Dimensions (approx.)	Approximately 25 x 25 x 35 cm (estimated)
Weight (approx.)	Approximately 2 kg (estimated)
Included accessories	Aromatherapy adapter, filter, power adapter

Frequently Asked Questions - AD 7974 ADLER

How to fill the water tank of the AD 7974 humidifier?

Open the cover by pulling the handle, pour cold water (max 40°C) up to the MAX level, then close. Never pour water while it is operating. Preferably use distilled or filtered water.

How to use the aromatherapy function?

Unscrew the nut of the aromatherapy adapter, pour 1-2 ml of water-soluble essential oil into the container, screw back on, then hang the adapter on the hook inside the tank. Press and hold the intensity button for 1.5 s to activate aromatherapy mode (without steam).

What to do if the screen does not turn on?

Check that the power cord is properly connected to the device and to a working wall outlet. If the problem persists, contact customer service.

How to set the timer on the AD 7974?

Turn on the device, then press the Timer button (14) to choose 2, 4, or 8 hours. To cancel, press and hold the button for 1.5 seconds.

What is the recommended target humidity and how to set it?

Press the target humidity level button (15) to choose between 30% and 80% in 10% increments. The device automatically maintains the selected level.

How to clean the atomization transducer?

Unplug the device, remove the water tank, then gently wipe the transducer (7) with a cotton swab soaked in a citric acid solution or mild detergent. Rinse and dry.

Why does white powder form around the humidifier?

This is due to limescale in hard water. Use distilled or filtered water to reduce this. Clean the transducer and tank regularly.

Can the device be used continuously?

Yes, but it is recommended to turn it off when leaving the room or at night. Use the timer or night mode. Empty and clean the tank every 3 days to prevent mold.

What does night mode mean?

Night mode turns off the screen and reduces mist output for silent operation. Press the night mode button (16) to activate; press and hold for 1.5 s to also reduce brightness.

Is the AD 7974 humidifier suitable for large rooms?

With a 5.5-liter tank, it is suitable for rooms up to about 30 m². For best results, place it at least 30 cm from walls and obstacles.

USER MANUAL AD 7974 ADLER

AD 7974
EN	User Manual 4		PL	Instrukcja obsługi 117
DE	Bedienungsanleitung 10		IT	Manuale d'uso 125
FR	Mode d'emploi 18		SV	Bruksanvisning 132
ES	Manual de usuario 26		BG	Ръководство за употреба 139
PT	Manual de Instruções 33		DA	Brugsanvisning 147
LT	Naudojimo instrukcija 40		SK	Použivatel'ská príručka 153
LV	Lietošanas instrukcija 47		BS	Korisnički priručnik 160
ET	Kasutusjuhend 53		MK	Упатство за употреба 167
HU	Használati útmutató	60	HR	Korisnički priručnik 174
RO	Manual de utilizare	67	UK	Керівництво користувача	181
CS	Návod k použití	74	SR	Упутство за употребу 189
RU	Руководство пользователя	81	AR	دليل المستخدم	196
EL	Еүхеиріdio хрήσης	89	AZ	İstifadəçi təlimatı	202
NL	Gebruikershandleiding	96	SQ	Manuali i përdorimit	208
SL	Navodila za uporabo	104	KA	Общег反馈	216
FI	Käyttöohje	111

GB	Clean the water tank every 3 days.
DE	Reinigen Sie den Wassertank alle 3 Tage.
FR	Nettoyez le réservoir d'eau tous les 3 jours.
ES	Limpie el tanque de agua cada 3 días.
PT	Limpe o reservatório de água a cada 3 dias.
LT	Vandens baką valykite kas 3 dienas.
LV	Iztīriet ūdens tvertni ik pēc 3 dienām.
EST	Puhastage veepaaki iga 3 päeva järel.
HU	Tisztítsa meg a víztartályt 3 naponta.
BS	Očistite rezervoar za vodu svaka 3 dana.
RO	Curățați rezervorul de apă la fiecare 3 zile.
CZ	Nádrž na vodu čistěte každé 3 dny.
RU	Очищайте резервуар для воды каждые 3 дня.
GR	Καθαρίζετε τη δεξαμενή νερού κάθε 3 ημέρες.
MK	Чистете го резервоарот за вода на секон 3 дена.
NL	Reinig het waterreservoir om de 3 dagen.
SL	Rezervoar za vodo očistite vsake 3 dni.
FI	Puhdista vesisäiliö 3 päivän välein.
PL	Czyść zbiornik na wodę co 3 dni.
IT	Pulire il serbatoio dell'acqua ogni 3 giorni.
HR	Očistite spremnik za vodu svaka 3 dana.
SV	Rengör vattentanken var tredje dag.
DK	Rengör vandbeholderen hver 3. dag.
UA	Очищайте резервуар для води кожні 3 dnі.
SR	Очистите резервоар за воду свака 3 дана.
SK	Nádrž na vodu čistite každé 3 dni.
AR	نظف خزان المياء كل 3 أيام.
BG	Почиствайте резервоара за вода на всеки 3 дни.
AZ	Su çənini hər 3 gündə təmizləyin.
ALB	Pastroni rezervuarin e ujit çdo 3 ditë.
KA	ʃυμμού σʒøο ʒʌʃðɒbɡɒŋ ʊʒɜːŋ 3 ɑːɡɡðo.

User Manual (EN)

GENERAL SAFETY CONDITIONS

IMPORTANT SAFETY INSTRUCTIONS FOR USE

READ CAREFULLY AND KEEP FOR FUTURE REFERENCE

1. Before using the device, read the user manual and follow the instructions contained therein. The manufacturer is not responsible for damage caused by using the device contrary to its intended use or improper operation.
2. The device is for home use only. Do not use for other purposes than its intended use.
3. The device should be connected only to a 220-240V~50-60Hz socket. In order to increase the safety of use, do not connect multiple electrical devices to one circuit at the same time.
4. To provide additional protection, it is advisable to install a residual current device (RCD) in the electrical circuit with a rated residual current not exceeding 30mA. In this regard, contact a specialist electrician.
5. Be especially careful when using the device when children are nearby. Do not allow children to play with the device. Do not allow children or people who are not familiar with the device to use it.
6. WARNING: This equipment may be used by children over 8 years of age and by persons with limited physical, sensory or mental capabilities, or persons who have no experience or knowledge of the equipment, if this is done under the supervision of a person responsible for their safety or if they have been given instructions on how to use the device safely and are aware of the dangers associated with its use. Children should not play with the equipment. Cleaning and maintenance of the device should not be performed by children, unless they are over 8 years of age and these activities are performed under supervision.
7. WARNING: Do not leave the appliance plugged in unattended.
8. WARNING: Keep the device out of the reach of children.
9. WARNING: Improper use of the device may result in injuries such as cuts, abrasions or electric shock.
10. WARNING: Always remove the plug from the power socket after use by holding the socket with your hand. DO NOT pull on the power cord.
11. WARNING: Do not use the device near flammable materials.
12. WARNING: Before cleaning and washing the appliance, unplug the power cord from the socket.
13. WARNING: Before filling the appliance with water, disconnect it from the power supply.
14. WARNING: Always unplug the humidifier if it is left unattended and before assembling, disassembling or cleaning.
15. WARNING: Do not move the device while it is in operation.
16. Do not immerse the cable, plug or the entire device in water or any other liquid. Do not expose the device to weather conditions (rain, sun, etc.) or use in conditions of increased humidity (bathrooms, damp camping houses).
17. Periodically check the condition of the power cord. If the power cord is damaged, it should be replaced by a specialist repair shop in order to avoid a hazard.
18. Do not use the device with a damaged power cord or if it has been dropped or damaged in any other way or does not work properly. Do not repair the device yourself, as this may cause electric shock. Return the damaged device to an appropriate service center for examination or repair. All repairs may only be performed by authorized service centers. Improperly performed repairs may cause serious danger to the user.
19. Place the device on a cool, stable, even surface, away from hot kitchen appliances such as: electric stove, gas burner, etc.
20. Do not use the device near flammable materials.
21. The power cord must not hang over the edge of a table or touch hot surfaces.
22. Do not leave the device or the power supply plugged in while it is switched on unattended.
23. Do not allow the motor part of the appliance to get wet.
24. It is forbidden to insert fingers or any other objects into the grilles in the device housing.
25. Do not cover the outlet opening.
26. After use, before storing the device, empty it of water by unscrewing the plug located on the bottom of the base.
27. If the device will not be used for a long time, disconnect it from the mains.
28. Always replace exhausted batteries in the remote control (if the device is equipped with a remote control transmitter) with new ones.
29. Do not move the device when there is water in the internal tank.
30. Do not place any objects on the device.
31. The device may only be used with properly functioning ventilation.
32. Please note that high humidity levels can promote the growth of biological organisms in the environment.
33. Do not allow the area around the humidifier to become damp or wet. If moisture does occur, reduce the humidifier's output.
34. Do not allow absorbent materials such as carpets, curtains, tablecloths to get wet.
35. When filling and cleaning, disconnect the appliance from the mains.
36. Never leave water in the tank when the appliance is not in use.
37. Before storing the device, empty the water tank and clean the humidifier.
38. Clean the humidifier and water tank before next use.
39. WARNING: If the water is not changed and the tank is not properly cleaned every 3 days, microorganisms that may be present in the water or in the environment where the device is used or stored may grow in the water tank and be blown into the

environment. This can cause a very serious health risk.

1. WARNING: Every three days, empty the water tank and refill with clean water. Before refilling, clean the tank with fresh tap water or detergents. Remove any scale, deposits or film that has formed on the sides of the tank and on the interior surfaces. After washing, wipe all surfaces dry.

The ultrasonic humidifier uses the principle of high-frequency ultrasonic oscillation, the water is atomized into ultrafine particles of 1-5 microns, and then the water mist is dispersed in the air by the pneumatic device, so as to achieve the purpose of evenly humidifying the air, refreshing the air, moisturizing the skin and improving health.

I. Description of the device (Fig. 1): Ultrasonic humidifier 1. Water tank cover 2. Handle 3. Spray nozzle with air channel 4. Handle 5. Water tank 6. Water level indicator 7. Spray transducer 8. Filter 9. Hook for aromatherapy container 10. Aromatherapy adapter 11. Air intake 11.1 DC jack 12. Humidification intensity adjustment button 13. On/Off switch 14. Timer button 15. Target humidity level setting button 16. Night mode button 17. Plant humidification mode 1. Moisturizing intensity 2. Timer icon 3. Target humidity level icon 4. Plant humidification mode icon 5. Unit of time 6. Moisture percentage 1. On/Off switch 2. Moisturizing intensity 3. +/- - increase/decrease timer settings/target humidity level 4. Set your target humidity level 5. Timer Time Settings 6. Night mode button 7. Plant humidification mode

BUTTONS

II DISPLAY / WAKE UP (Fig. 2)

III PILOT (Fig. 3)

BEFORE FIRST USE

1. Clean the device according to the CLEANING AND MAINTENANCE section.
2. Install the supplied filter (8) into the water tank (5). Remove the water tank cover (1). Place the filter (8) onto the spray nozzle channel (3) so that the wide part is at the bottom.

FILLING WITH WATER (Fig. 4)

1. Place the unit on a stable, flat, water-resistant surface. Do not place on carpets. The unit may not operate properly if placed on an uneven surface. Position the humidifier so that the electrical cord and humidifier do not pose a tripping hazard. To ensure adequate ventilation, make sure that all sides, the bottom with the air inlet (11), and the top of the humidifier are at least 30 cm away from walls or other objects.
2. Open the cover (1) of the water tank (5) by pulling the handle upwards (4).
3. Pour cold water into the tank (5). For better results, use distilled or filtered water. Do not pour hot water (over 40°C) or with chemical additives. Do not pour any liquids other than water. Do not use additives.

Be careful not to exceed the MAX (maximum) water level marked on the inside of the water tank (5).

1. Place the cover (1) on the water tank (5).

NOTE: DO NOT add or pour water while the appliance is running. Always turn the appliance off and unplug it from the power source before adding water.

NOTE: DO NOT turn on the appliance when the water tank (5) is empty. The appliance will not start if the water level in the water tank (5) does not exceed the minimum level marked on the wall of the tank.

1. The device has a protection against insufficient water in the tank. When the water level drops below the minimum allowable level, the device will sound for 4 seconds and the humidification intensity indicator (1) will flash for 10 seconds. The device will turn off and the fan will stop working after 20 seconds.

Note: The device will not make any sound in night mode.

1. Never immerse the housing in liquid or pour liquid into or onto the housing. Do not pour water into the spray nozzle or air channel (3). This may damage the humidifier.

DEVICE OPERATION - device power button (13)

Connect the power supply unit to the DC socket (11.1) on the device and the plug to a power source.

1. To turn on the device, first press the display. The device will wake up. And all buttons will light up.
2. Turn on the device using the switch (13).
3. The device will turn off by pressing the switch (13) once.

NOTE: Dry your hands before pressing the buttons. Otherwise, low control panel sensitivity may occur.

NOTE: Never tilt or move the device during operation when there is water in the tank (5).

SETTING THE HUMIDIFICATION POWER - humidification intensity adjustment button (12):

1. Wake up the device by pressing the display. All buttons will light up.
2. Turn the device on using the switch (13).
3. Press the humidification intensity adjustment button (12). Subsequent presses will adjust the intensity from low to high.
4. Press and hold the humidification intensity adjustment button for 1.5 seconds. The aromatherapy mode will start.

In this mode there is no steam output, only aromatherapy works if the aromatherapy adapter (10) is installed.

AROMATHERAPY ADAPTER INSTALLATION (10)

1. Unscrew the nut.
2. Pour 1-2ml of humidifier oil into the container.

3. Screw on the cap.

1. Remove the water tank cover (1). Place the adapter on the hook (9) by inserting the middle part of the adapter between the arms of the hook (9). The adapter nut (10) should face down, towards the water.

NOTE: ONLY water-soluble essential oils are suitable for this device.

DO NOT drip essential oils directly into water.

TIMER SETTING - timer button (14)

1. Wake up the device by pressing the display. All buttons will light up.
2. Turn the device on using the switch (13).
3. Press the timer button (14). Subsequent presses will set the time after which the device will turn off: 2, 4 or 8 hours.

Press the timer button (14) for 1.5 seconds to turn off the timer.

SETTING THE TARGET HUMIDITY LEVEL – Set target humidity level button (15)

1. Wake up the device by pressing the display. All buttons will light up.
2. Turn the device on using the switch (13).
3. Press the target humidity setting button (15). Subsequent presses will set the target humidity: 30%, 40%, 50%, 60%, 70%, 80%.

In this mode, if the humidity exceeds 1% of the set humidity value, the device will stop working and will not produce mist. When the humidity is 1% lower than the set humidity value, the device will start again to maintain the desired

humidity level.

Ambient humidity monitoring - H or L on the display:

The display shows the current ambient humidity, and the humidity symbol remains constantly on, monitoring the ambient humidity.

When the ambient humidity exceeds 85%, the display will show: H, when the ambient humidity drops below 30%, the display will show: L.

NIGHT MODE - Night mode button (16)

1. Wake up the device by pressing the display. All buttons will light up.
2. Turn the device on using the switch (13).
3. Press the night mode button (16). The light around the display will turn off.
4. Press the night mode button (16) for 1.5 seconds. The amount of mist produced will decrease, the icon backlight and the display backlight will turn off.

PLANT HUMIDIFICATION MODE – plant humidification mode button (17)

1. Wake up the device by pressing the display. All buttons will light up.
2. Turn the device on using the switch (13).
3. Press the plant humidification mode button (17). The device will set the strongest steam output, which will help keep your plants in good condition.
4. Press the plant humidification mode button (17) again to cancel.
5. In this mode it is possible to set: target humidity level (15) and timer (14).
6. Press the humidification intensity adjustment button (12) to cancel the plant humidification mode (17).

PRECAUTIONS

1. If the device will not be used for a long time, pour the water out of the water tank (5) and dry the tank.
2. Do not allow water to enter the spray nozzle or the air channel (10).
3. If there is water on the housing, wipe the outside of the humidifier with a dry, soft cloth.
4. Pour out the water from the tank if the ambient temperature is below 0°C. Avoid freezing the water in the device.

This may damage the device.

CLEANING AND MAINTENANCE

NOTE: Every three days, empty the water tank and refill with clean water. Before refilling, clean the tank with detergents. Remove any scale, deposits or film that has formed on the sides of the tank and on the interior surfaces.

After washing, wipe all surfaces dry.

Disconnect power before cleaning or servicing the unit.

1. If there is some water left in the water tank (5), pour it out by tilting the water tank (5). NOTE: It is important to correctly position the water tank (5) when pouring water. The correct position is achieved when the air outlet (3) remains dry and the water jet is directed through the opposite edge of the water tank (5).
2. Wipe the spray nozzle (3) in the cover and the inside of the water tank (5) with a soft cloth dampened with water.
3. After using the device for a period of time, scale is easily deposited and the "white powder" phenomenon is formed, it is attached to the surface of the atomizing transducer (7), which affects the humidification efficiency. Remove the water tank (5). Wipe the atomizing transducer (7) with a cotton swab soaked in citric acid solution or detergent.
4. The outer surface of the device housing can be cleaned with a damp cloth, and then wiped dry with a clean cloth. Do not use chemical solvents, gasoline, kerosene or polishing powder to wipe the surface.
5. Do not allow water to enter the interior of the case when cleaning to avoid internal components malfunctioning.
6. Clean the device before each subsequent use.

PROBLEM SOLVING

If the device does not work properly, check the following possible causes before sending it to the service center to solve the problems yourself.

PROBLEM I: the display does not light up.

POSSIBLE CAUSE OF PROBLEM I: The power supply is not connected properly.

PROBLEM SOLUTION I: Connect the power cord and turn on the power.

PROBLEM II: Too little atomization

POSSIBLE CAUSE OF PROBLEM II:

IIa. There is too much white deposit on the atomizing transducer (7)

IIb. The water is too dirty or stored for too long

IIc. The fog volume was set to low

PROBLEM SOLUTION III:

IIIa. clean the white stone on the atomizing transducer (7)

IIIb. Change to clean water

IIIc. Set the fog level to medium or high

PROBLEM III: The peculiar smell of the mist

POSSIBLE CAUSE OF PROBLEM III: The water in the tank is not clean or has been stored for a long time.

SOLUTION TO PROBLEM III: Clean the water tank, dry it, then add clean water.

TECHNICAL DATA:

Power: 24W

Power supply: 220-240V~ 50-60Hz

Water tank capacity: 5.5 liters

In the interest of the environment. Information on used electrical and electronic equipment. In accordance with art. 13 sec. 1 and sec. 2

of the Act of 11 September 2015 on used electrical and electronic equipment, we inform you about the correct handling of waste electrical and electronic equipment:

1. It is prohibited to place used electrical and electronic equipment together with other waste – this is confirmed by the marking in the form of a "crossed-out bin", which requires selective collection of this type of waste.
2. Electrical and electronic devices may contain hazardous substances, mixtures and components which, when released into the environment, may pose a serious threat to the health and life of humans and living organisms. They may lead to numerous health ailments, such as: vision, hearing and speech disorders, and may also damage the kidneys, liver and heart, and cause skin diseases. Harmful substances may also have an adverse effect on the respiratory and reproductive systems and lead to cancerous changes. Consumption of plants growing in contaminated soils, and products made from them, may pose a risk of the above health effects.
3. Used electrical and electronic equipment should only be delivered to authorised collection points, a list of which should be available on the website of each Municipal Office.
4. The household plays an important role in contributing to the reuse and recovery, including recycling, of used equipment. It also plays a key role in the waste management system for used electrical and electronic equipment due to the possibility of direct transfer to authorized collection points and the elimination of undesirable social habits resulting in leaving waste equipment in places not intended for this purpose.

In addition, return used electrical and electronic equipment to the place of delivery. The distributor, when delivering equipment intended for households to the purchaser, is obliged to collect used equipment from households free of charge at the place of delivery of such equipment, provided that the used equipment is of the same type and performed the same functions as the equipment delivered.

Cardboard packaging and polyethylene (PE) bags should be disposed of in appropriate containers for selective collection of municipal waste according to their description. If there are batteries in the device, they should be removed and taken to a separate collection and storage point.

Do not throw the device into municipal waste!!

Service: If you wish to purchase spare parts or make any complaints, please contact the seller who issued the receipt directly.

TROUBLESHOOTING III:

IIIa. Clean the white stone on the nebulization transducer (7)

IIIb. Switch to clean water

30%, 40%, 50%, 60%, 70%, 80%.

7: Average active efficiency

8: Efficiency at low load (10%)

9: No-load power consumption

DE

1: Model identification

2: Input voltage

1: model identifier

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AFTER-SALE SERVICE NOTICE