NUK 78102 User manual

Ultrasonic Warm & Cool Mist
Humidifier
Operating Instructions
PLEASE READ AND SAVE
THESE IMPORTANT SAFETY
INSTRUCTIONS.
Model 78102

2
IMPORTANT NOTES: Please read this entire manual
carefully before using this device. Product may vary from
picture.
When using electrical appliances, basic safety precau-
tions should always be followed to reduce the risk of
fire, electric shock, and injury to persons, including the
following:
1. Read all instructions before using the appliance.
2. To avoid fire or shock hazard, plug the appliance
directly into a 120V AC electrical outlet.
3. Keep the cord out of heavy traffic areas. To avoid fire
hazard, NEVER put the cord under rugs or near heat
registers.
4. DO NOT place humidifier near heat sources such
as stoves, radiators, and heaters. DO locate your
humidifier on an inside wall near an electrical outlet.
The humidifier should be at least 4 inches (10 cm)
away from the wall for best results.
5. ALWAYS keep humidifier out of reach of children.
ALWAYS keep the room with a running humidifier
well ventilated – either a window or a door should
be open at all times (a closed room may result in
excessive humidity).
6. WARNING: DO NOT attempt to refill humidifier with-
out first unplugging the unit from its electrical outlet.
Failure to heed this warning may cause personal
injury. Be sure to unplug the unit by pulling on the
plug and not the cord.
7. NEVER place anything over moisture outlet when the
unit is running.
8. NEVER drop or insert any object into any openings.
9. DO NOT operate any appliance with a damaged
cord or plug, after the appliance malfunctions, or
if it has been dropped or damaged in any manner.
Discontinue use and call the NUK®Customer Service
Center for further instruction.
10. Use appliance only for intended household use as
described in this manual. Any other use not recom-
mended by the manufacturer may cause fire, electric
shock, or injury to persons. The use of attachments
not recommended or sold by the manufacturer may
cause hazards.
11. DO NOT use outdoors.
12. ALWAYS place humidifier on a firm, flat, level surface.
A waterproof mat or pad is recommended for use
under the humidifier. NEVER place it on a rug or
carpet, or on a finished floor that may be damaged
by exposure to water or moisture.
13. DO NOT allow the moisture outlet to directly face the
wall. Moisture could cause damage, particularly to
wall paper.
14. Humidifier should be unplugged when not in use.
15. NEVER tilt, move, or attempt to empty unit while it is
operating. Shut off and unplug before removing the
water tank and moving the unit.
16. This humidifier requires daily and weekly maintenance
to operate appropriately. Refer to daily and weekly
cleaning procedures. Use only cleaners and additives
recommended by the manufacturer.
17. NEVER use detergents, gasoline, glass cleaner, furni-
ture polish, paint thinner, or other household solvents
to clean any part of the humidifier.
18. Excessive humidity in a room can cause water con-
densation on windows and some furniture. If this
happens, turn the humidifier OFF.
19. DO NOT use humidifier in an area where humidity
level is in excess of 50%. Use a hygrometer, available
at your local retailer, to measure the humidity.
20. DO NOT attempt to repair or adjust any electrical or
mechanical functions on this unit. Doing so will void
your warranty. The inside of the unit contains no user
serviceable parts. All servicing should be performed
by qualified personnel only.
21. NEVER place housing under flowing water or im-
merse in liquids.
22. DO NOT plug in the cord with wet hands – electric
shock could result.
23. DO NOT pour water in any openings other than the
water tank.
24. To prevent damage to surfaces, DO NOT place
humidifier under overhanging surfaces.
25. NEVER operate unit without water in the tank.
26. DO NOT move unit after it has been used until unit
cools completely.
27. Use both hands when carrying full tank of water.
PLEASE READ AND SAVE THESE IMPORTANT SAFETY INSTRUCTIONS
This appliance has a polarized plug (one blade is wider than the other). To reduce the
risk of electric shock, this plug is intended to fit in a polarized outlet only one way. If
the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a
qualified electrician to install the proper outlet.
Do not attempt to modify this plug or defeat this safety feature in any way.

3
PLEASE READ AND SAVE THESE IMPORTANT SAFETY INSTRUCTIONS
CONSUMER SAFETY INFORMATION
NOTE: This is an electrical appliance and requires
attention when in use.
NOTE: If moisture forms on the walls or windows of the
room, turn off the humidifier. The room already has plenty
of humidity and additional moisture may cause damage.
NOTE: DO NOT block air inlet or outlet.
CORD AND PLUG INSTALLATION
SAFETY INSTRUCTIONS:
The length of cord used on this appliance was selected
to reduce the hazards of becoming tangled in, or tripping
over a longer cord. If a longer cord is necessary, an
approved extension cord may be used. The electrical
rating of the extension cord must be equal to or greater
than the rating of the humidifier (refer to the rating
information placed on the humidifier). Care must be taken
to arrange the extension cord so that it will not drape
over the countertop or tabletop where it can be pulled on
by children or accidentally tripped over.
WARNING: STRANGULATION HAZARD. Keep cord
out of children’s reach. NEVER place humidifier or
cords within 3 feet of crib or playing area.

4
FEATURES – OPERATIONS
HOW ULTRASONIC WORKS
An ultrasonic transducer atomizes water, producing
refreshing visible cool or warm mist.
NOTE: A humidity level below 20% can be unhealthy
and uncomfortable. The recommended humidity level is
between 40% - 50%.
FILLING INSTRUCTIONS
1. Be sure the humidifier is switched off.
2. Select a location for your humidifier on a flat level
surface about 4 inches (10 cm) away from the wall.
DO NOT place the humidifier on a finished floor or near
furniture which can be damaged by too much moisture
or water. Place on a moisture resistant surface.
3. Remove the tank ( C) from the main housing.
4. Bring the tank ( C) to the sink, twist off the tank cap
( D) by turning counterclockwise. Fill tank with cool,
fresh tap water. DO NOT fill with warm water as this
may cause leaking. Replace the cap on tank FIRMLY.
F. Comfort Select Button
G. Warm/Cool Mist Button
H. LCD Display
I. Speed Button
Figure 2
J. Dial Knob
K. Power Button
L. Timer Button
F
G
H
I
B
A
A. Moisture Outlet
B. Control Panel
(see Figure 2 for close-up)
C. Water Tank
Figure 1
D. Tank Cap
E. Humidier Base
C
D
E
5. Place tank back onto the base. The tank will
immediately begin to empty into the base.
6. Plug the humidifier into a 120V electrical outlet.
OPERATING INSTRUCTIONS
Power Button
1. Press the Power Button ( K) to turn the humidifier on;
the LCD display ( H) shows the room humidity level.
NOTE: The display range is 30% - 90%, If your room
humidity level falls below 30%, the unit will still display 30.
If your room humidity level rises above 90%, the unit will
continue to display 90.
2. Once the unit is turned on, it begins to run at the Cool
Mist and High Speed settings. The Cool Mist Icon ( )
and High Speed Setting ( 2 ) will illuminate on LCD
display.
3.
To switch to Low ( 1 ) setting, press the Speed ( I )
Button.

5
Warm/Cool Mist Button
Press the Warm/Cool Mist Button ( G) to switch between
Cool Mist and Warm Mist mode. The corresponding icon
(( ) for Warm / ( ) for Cool Mist) will illuminate on LCD
display ( H) to indicate which mode is activated. Cool
Mist and Warm Mist can operate at all speed settings.
Press the Speed Button ( I) to switch between High ( 2)
and Low ( 1) settings.
NOTE: For optimal warm mist output allow up to 20
minutes of run time after selecting the warm mist function.
Comfort Select Button (5 Comfort Modes)
The humidifier is designed with 5 comfort modes; you
may select the one which suits your need. Press the
Comfort Select Button ( F) to activate the function,
and then turn the Dial Knob ( J) to cycle through the
5 comfort levels and select your preferred mode; the
selected mode will illuminate on LCD display ( H):
• ALLERGY
• COLD/FLU
• COMFORT
• DRY SKIN
• NOSE & THROAT
Digital Humidistat Control
Your humidifier is equipped with a digital humidistat that
allows you to set your humidifier to your desired comfort
level. To preset a precise comfort level, turn the Dial
Knob ( J) to adjust the humidity level ranging from 35%
to 60% or “Stay On” setting for constant humidity. The
LCD Display ( H) will show the selected humidity level
for 5 seconds and then change back to show the room
humidity. When the room humidity level rises above the
set humidity, the humidifier will stop. When the room
humidity level drops below the set humidity, the humidifier
will turn on automatically to maintain the preset humidity
level.
NOTE: To shut the humidifier off at any setting, press
the Power Button ( K). The humidistat has memory. This
means that when you turn the unit back on, it will be at
the last humidity setting before the humidifier is turned
off. However, if the humidifier is unplugged, the digital
humidistat will no longer remember the previous humidity
setting. You will need to reset the digital humidistat if the
humidifier is unplugged.
CAUTION: DO NOT move the humidifier with water in
the tank ( C) or the humidifier base ( E). The moving
action of the water may activate the water tank’s release
nozzle and overfill the humidifier base. This may cause the
humidifier to function intermittently, or stop emitting mist.
Should his occur, simply remove the excess water from
the humidifier base.
FEATURES – OPERATIONS
NOTES:
• High setting will produce the maximum moisture level
and Low setting will produce the longest run time and
quieter performance.
• When the humidifier runs out of water, the transducer
and fan will automatically shut off.
Tank Empty
Once the tank ( C) is empty, TANK EMPTY will illuminate
in the LCD display ( H), and the humidifier will shut off
automatically. Unplug the humidifier from the electrical
outlet. Before refilling, empty any residual water from
the base ( E) and the tank (follow the Daily Maintenance
Instructions.)
Timer
Your humidifier is equipped with a 24-Hour Auto Shut-off
Timer feature. This allows you to program your humidifier
to shut off automatically after running for a defined time
interval.
1. Press the Timer Button ( L) once. The “00 ” next to HR
icon will begin to blink.
2. Press the Timer Button ( L) to select your desired time
interval for the humidifier to shut off automatically after
8, 12, 16, or 24 hours.
3. The Timer Icon ( ) will appear on the LCD Display to
indicate that the timer is active.
4. To cancel the timer feature, press the Timer Button ( L)
to select “00” HR .

6
CLEANING AND MAINTENANCE INSTRUCTIONS
The following maintenance procedures must be routinely followed in order to ensure proper efficient operation of your
humidifier. The unit will not work properly if not cleaned regularly.
When the unit is in use, daily and weekly maintenance is recommended. Regular weekly cleaning prevents scale buildup
on the heating element and tray. It also prevents micro-organisms from growing on the tray and tank. This ensures that
maximum efficiency will be achieved.
We cannot over-emphasize how essential proper cleaning is to the maintenance and continued use of your unit and to
the avoidance of algae or bacteria buildup.
DAILY MAINTENANCE
1. Before cleaning, switch off the humidifier and unplug
the unit from the electrical outlet. Allow the unit to cool
down before cleaning.
2. Remove the water tank from the humidifier and place
in sink or tub.
3. Drain any remaining water and rinse thoroughly to
remove any sediment or dirt. Wipe clean and dry with
a clean cloth or paper towel.
4. Refill with cool tap water. Do not overfill.
WEEKLY MAINTENANCE
To Remove Scale:
1. Repeat steps 1-3 in the Daily Maintenance section.
2. Clean all surfaces with a soft brush (provided – see
Figure 3). Lift door on left button side of humidifier to
access transducer. Use brush provided to gently clean
transducer (See Figure 3). Remove the scale by wiping
the entire base with a cloth dampened with undiluted
white vinegar.
3. Rinse with clean warm water to remove scale and the
white vinegar solution before beginning to disinfect
the tank.
To Disinfect Tank:
1. Fill the humidifier tank ½ full with water and ½ table-
spoon of chlorine bleach.
2. Let the solution stand for 20 minutes, swishing every
few minutes. Wet all surfaces.
3. Empty the tank after 20 minutes, and rinse well with
water until the bleach smell is gone. Dry with a clean
cloth or paper towel.
4. Refill the water tank with cool water; replace the
housing and the water tank. Repeat ALL Operating
Instructions.
STORAGE INSTRUCTIONS
If your humidifier will not be in use for two days or more,
follow these instructions:
1. Clean, rinse and thoroughly dry the humidifier as
directed in the weekly maintenance section. DO NOT
leave any water inside the base.
2. Remove the tank cap. Do not store with the tank cap
in place.
3. Place the humidifier in the original carton and store in a
cool, dry place.
4. Always clean the humidifier before the next season
begins.
Figure 3
Transducer
Brush

7
TROUBLESHOOTING
Trouble Probable Cause Solution
Water leaks
from tank
Tank rubber ring is missing Remove tank cap and replace or reposition ring
Cap is not tight enough Tighten the cap
Tank water is hot Fill with cool, fresh tap water only
Crack in tank Hot water will cause tank to pressurize Fill with cool water only
Tanks will crack if hit or dropped Handle tank with care
Film on tank Mineral deposits Clean/disinfect tank as instructed in Weekly Cleaning
instructions
Warm mist
minimal to
none
Heating can take up to 20 minutes
to warm
Allow up to 20 minutes of run time after selecting
the warm mist option
Reduced or
no mist Scale build up on transducer Clean transducer (refer to the Cleaning and Maintenance Instructions)
FREQUENTLY ASKED QUESTIONS
Question Answer
What are the variables that affect
run time?
The estimated run time for this humidifier is based on average room
conditions. The actual run time of your humidifier is dependent on numerous
variables such as:
• Air exchange in the room where the humidifier is placed.
• Room construction where the humidifier is placed.
• Temperature of the room where the humidifier is placed.
• Humidity levels in the room where the humidifier is placed.
• Movement of occupants and the opening and closing of doors
in the room where the humidifier is placed.
• Home furnishings in the room where the humidifier is placed.
How do I remove film on water tank? See Daily Maintenance instructions. Regular cleaning is recommended.
How can I extend the run time? Run your unit on the lowest setting.
Fill the tank all the way full, place it on the base. Let the water empty into
the base until it stops bubbling, then refill the tank full again. This ensures
maximum water capacity and will extend run time.

8
ICES STATEMENT
This apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
This Class B digital apparatus complies with Canadian ICES-001.
FCC STATEMENT
Potential for Radio/Television
interference.
This device complies with part 18 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, in-
cluding interference that may cause undesired operation.
This product has been tested and found to comply with
the limits for a class B digital device, pursuant to Part 18
of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. The product generates, uses, and can radiate
radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there
is no guarantee that the interference will not occur in a
particular installation. If the product does cause harmful
interference to radio or television reception, which can
be determined by turning the product on or off, the user
is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the product and the
receiver.
• Connect the product into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV techni-
cian for help.
• Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.

9
WARRANTY INFORMATION
3 YEAR LIMITED WARRANTY
NUK USA LLC warrants that for a period of three years
from the date of purchase, this product will be free from
defects in material and workmanship. NUK USA LLC will
replace this product or any component of the product
found to be defective during the warranty period.
Replacement will be made with a new or remanufactured
product or component. If the product is no longer avail-
able, replacement may be made with a similar product
of equal or greater value. This is your exclusive warranty.
DO NOT attempt to repair or adjust any electrical or
mechanical functions on this product. Doing so will void
this warranty.
This warranty is valid for the original retail purchaser from
the date of initial retail purchase and is not transferable.
Keep the original sales receipt. Proof of purchase is
required to obtain warranty performance. Dealers, service
centers, or retail stores selling NUK USA LLC products
do not have the right to alter, modify or in any way
change the terms and conditions of this warranty.
This warranty does not cover normal wear of parts or
damage resulting from any of the following: negligent
use or misuse of the product, use on improper voltage
or current, use contrary to the operating instructions,
disassembly, repair or alteration by anyone other than
NUK USA LLC. Further, the warranty does not cover acts
of God, such as fire, flood, hurricanes and tornadoes.
What are the Limits on NUK USA LLC
Liability?
NUK USA LLC shall not be liable for any incidental or
consequential damages caused by the breach of any
express, implied or statutory warranty or condition.
Except to the extent prohibited by applicable law, any
implied warranty or condition of merchantability or fitness
for a particular purpose is limited in duration to the dura-
tion of the above warranty.
NUK USA LLC disclaims all other warranties, condi-
tions or representations, express, implied, statutory or
otherwise.
NUK USA LLC shall not be liable for any damages of any
kind resulting from the purchase use or misuse of, or
inability to use the product including incidental, special,
consequential or similar damages or loss of profits, or for
any breach of contract, fundamental or otherwise, or for
any claim brought against purchaser by any other party.
Some provinces, states or jurisdictions do not allow
the exclusion or limitation of incidental or consequential
damages or limitations on how long an implied warranty
lasts, so the above limitations or exclusion may not apply
to you.
This warranty gives you specific legal rights, and you may
also have other rights that vary from province to province,
state to state, or jurisdiction to jurisdiction.
How to Obtain Warranty Service
If you have any questions regarding this warranty or
would like to obtain warranty service, please call the
NUK®Customer Service Center at 1-800-447-0167.
To make a claim or troubleshoot a problem, please
contact the NUK®Customer Service Center at
1-800-447-0167. NUK®Customer Service will
provide the assistance in resolving the issue through
troubleshooting and/or provide an address for returning
the product.
In the U.S.A., this warranty is offered by NUK USA LLC
located in Reedsburg, Wisconsin 53959. If you have any
other problem or claim in connection with this product,
please visit our website: www.NUK-USA.com or call our
Customer Service: (1-800-447-0167).
PLEASE DO NOT RETURN THIS PRODUCT TO ANY
OF THESE ADDRESSES OR TO THE PLACE OF
PURCHASE.
For more information on NUK®products,
visit our website: www.NUK-USA.com
or call NUK®Customer Service: (1-800-447-0167)
Distributed by NUK USA LLC, a subsidiary of Jarden Corporation (NYSE:JAH), 728 Booster Blvd., Reedsburg, WI
53959 USA. NUK is a registered trademark of Mapa GmbH, Zeven, Germany. Bionaire Logo is a registered trademark
of Sunbeam Products, Inc. used under license. ©2013. All rights reserved. Due to continuing product development,
the product inside the packaging may look slightly different than the one on the package.
03-UC-78103 RevA