Nicefeel FC3680 Series User manual

After-sales Service
Thank you for purchasing Nicefeel oral irrigator.
Please read the following precautions:
Warranty Record
Customer name Tel
Product model
Maintenance date
Mailing address
Date of purchase
Product color
Where the product is
purchased (seller)
1. Please ask the seller for a valid sales document as the basis
for the warranty when purchasing the oral irrigator.
2. The product is covered by free maintenance for failure due to
non-human factors within one year according to relevant state
regulations (subject to the date on the purchase invoice date);
3: Costs and service fees will be charged as appropriate during
the warranty period in the following cases:
(1). Damage caused by improper use, maintenance and
storage by the consumers;
(2). Damage caused by dismantling of unauthorized repairer;
(3). No relevant sales document and it has been over one year
after the production date;
(4). Damage caused by commercial use;
(5). Damage caused by force majeure (earthquakes, fires, etc.).
4. Please fill in the form below with care, and send it together
with the product to be repaired to the service site designated by
the manufacturer.
Shenzhen Fly Cat Electric Appliance Co., Ltd.
Address: Building 4, Xianyuxing Industrial Park, Gonghe Community,
Shajing Street, Baoan District, Shenzhen, China
Tel: [phone]
Fax: 0755-272733465
Website: www.fly-cat.com.cn
Oral Irrigator
FC3680 Series
Instruction Manual

1 2
Important Safety Precautions
Please keep this User Manual!
Please read all the outlined instructions before using
Dangers
To reduce the risk of electric shock, please pay attention to the
following items:
·DO NOT handle the charger with wet hands.
·DO NOT immerse the product in water or any other liquid.
·DO NOT use the product while taking a bath.
·DO NOT place or store the product in a place where it may fall into
the bathtub, shower or sink.
·DO NOT pick up the product falling into the water immediately, make
sure it is unplugged immediately before taking any other action.
·Check whether the adaptor is damaged before using the product for
the first time after purchase.
In order to reduce the risk of ambustion, electric shock,
fire, serious injury or damage:
·DO NOT plug the product into an adapter that does not meet the
specified voltage.
·DO NOT use the product if the cable or plug is broken. If it does not work
normally or is immersed in any liquid, please contact your local dealer.
·DO NOT lead the water flow under your tongue, or into your ear, nose or
other minor organs. This product is capable of producing pressure that
may cause serious damage to these organs. Please refer to the operating
instructions for proper use.
·Please follow the instructions or recommendations from dental profes-
sionals when using the product.
·A small amount of bleeding is normal when using the product for the first
time. If the bleeding is serious, stop using and ask your dentist for advice.
·Fill the reservoir with water or other solutions recommended by the
dental professionals.
·DO NOT drop or insert any foreign objects into the product.
·Keep chargers and wires away from hot surfaces.
use mouthwash or rinse solution containing iodine or disinfectant.
·DO NOT use the product when wearing dental accessories, which should
be remove before use.
·DO NOT use the product if there is an open wound on the tongue or in
the mouth.
·If your doctor recommends you to take antibiotics before surgery, please
consult a dentist before using the product or any other oral hygiene
adjuvant.
·For household use only. DO NOT use the product outdoor.
·Children and individuals with special needs should be closely guided and
supervised for using the product properly.
·Children should be supervised to ensure proper use of the product.
Basic safety precautions should be followed when using electrical
products, especially when there are children in the house.

Traditional toothbrushes cannot
remove food debris and harmful
bacteria hiding deeply.
Remove harmful bacteria
hiding deep in the crevices
between teeth and below the
gum line.
They can only reach a limited
part below the gum line.
Traditional oral care:
Nicefeel Oral Irrigator
Thank you for purchasing our Oral Irrigator!！ Table of Content
Thank you for purchasing our oral irrigator!
Welcome to use Nicefeel oral irrigator, which will give you healthier teeth
and brighter smile!
Cleaning teeth with pulse water flow, the oral irrigator can remove harmful
bacteria hidden deep in the crevices between teeth and below the gum
line, where cannot be cleaned by brushing teeth only.
The Company reserves the right of final interpretation for any error in or
misunderstanding of the content of this User Manual; any product or
data update will be incorporated into the new version without prior
notice; and in case of any change in the appearance and color of the
product, the product inside the package shall prevail.
Important Safety Precautions--------------------------------1
Contents----------------------------------------------- 4
Product Structure---------------------------------------- 5
Function nozzle------------------------------------------6
Using Instruction for Product--------------------------------7
Using Instruction for Professional Nozzles---------------------11
Cleaning and Maintenance-------------------------------- 13
Common Failures and Handling Methods----------------------14
3 4

56
Product Structure
1. Water Tank Cover
4. Display
7. Pressure Up
10. Nozzle Box Cover
13. Base
2. Water Tank
5. High-pressure Nozzle
8. Pressure Down
11. Tips
14. Anti-slip Sucker
3. Body
6. Power On/Off
9. Switch between super
oxygen water and
natural water
12. Accessories Support
1
10
5
11
12
13
14
4
2
3
6
7
8
9
Ordinary high-
pressure nozzle Periodontal
pocket nozzle
Dental plaque
nozzle Orthodontic brush Tongue Cleaner
* Ordinary high-pressure nozzle: comprising three colored rings for
three persons. (Family Pack)
* For the using instructions of other four special nozzles (tongue
scraper, periodontal pocket nozzle, orthodontic brush and dental
plaque nozzle), please refer to pages 11-12 of the Manual.
Gum bleeding is normal due to different tolerance when using the
water flosser for the first time. Please feel free to use!

7 8
Plug the wire into the socket. If the socket is controlled with a switch on the
wall, make sure it is on. The product handle has a power-on/off button,
pause button, two pressure control buttons and a switch between super
oxygen water and natural water on the front, of which the pressure control
button can be used to control the water pressure. After plugging-in, the
screen in the center of the body will show the operation status; press the
power-on button, and then the screen will show ten levels from 01 to 10.
The user may select a proper level to control the water pressure. The user
may select the super oxygen water (for disinfection) by pressing the switch
between super oxygen water and natural water. Set a 3-minute operation
from start to halt (note: The product needs to restart after the timer is over).
Take off the water tank, fill it with warm water, put on and tightly press the
water tank cover. The sound of cracking means the installation is
complete. The tank surface has volume marks in the unit of OZ. and ML.
How to Use
Prepare the Water Tank
Insert the nozzle into the middle of the knob at the top of the handle of the
water flosser. If the nozzle is locked in place, the colored ring shall be flush
with the end of the knob. To remove the brush from the handle, please
press the nozzle eject button and pull the nozzle out of the handle.
When using the product for the first time,
please adjust the pressure gear on the
handle of the product to the minimum
value (the gear displayed on the body can
be adjusted in gears 01-10). Start from
the lowest gear, turn on the switch on the
handle, and gradually increase the
pressure after the oral cavity adapts to it.
You can also increase the pressure under
the guidance of a professional dentist.
Insert and remove the nozzle
Adjust pressure settings

910
You can turn off the oral irrigator at any time and then put the handle
back on to pause the water flow.
Pause Control
Turn off the device, pour out the residual liquid in the water tank and
unplug the device. The device automatically starts the previous
configuration after power-on.
Note: The device bottom has a drain hole for the drainage of the water
tank and main body. It is not a water leakage.
Completion
开关
Lean over the sink and place the injector head into the mouth. Align the
nozzle to your teeth. Turn on the pushing switch on the handle to adjust
the water pressure to the desired value. Control the direction of water flow
by turning the knob on the top of the handle.
Using Oral Irrigator
Adjust the water jet flow to 90
degree to the gum line. Close your
lips to prevent the water from
flowing sideways while allowing the
water in your mouth to flow freely
into the sink. For best effect, start
cleaning from the molar teeth (back
teeth) towards the front teeth. Slide
the injector head along the gum line
with short pauses between teeth. DO
NOT stop until the areas around the
gums and among the teeth are
cleaned.
Use Tips

11 12
Instructions for the Jet Tip
High-pressure tip
360° washing and cleaning covers the
area that normal toothbrush cannot
reach. It is more effective than dental
floss and healthier for your gum.
Periodontal pocket tip
Tongue scraper
It can inject water or antibacterial liquid to
the specific part under your gum. Please
bend on the basin, reach the soft tip to
your teeth at an angle of 45°, and then
slightly put the tip in the alveolar socket
under the gum line. Turn on the device, set
the minimum pressure level, slightly put
the tip to the tooth slit and start cleaning
teeth along the gum line. Continue moving
along the gum line until
the cleaning is complete.
Bend on the sink. Put the tongue scraper
on your tongue and turn on the oral
irrigator (start by the minimum level and
make gradual adjustment). Slightly put the
scraper at the center of the tongue back
and then scrape forward.
Orthodontic tip
The professional orthodontic tip aims to clean the parts around the
braces and those cannot be reached by a dental kit. Bend on the sink
and clean with the tip to wash off the residues on your teeth.
Dental plaque tip
Aim at your gum with the water flow at a 90° angle, slightly close your
lips to avoid splashing and make sure the water flows in the sink. Start
from the back of molar and then to the front. Put the tip close to your
teeth so that the brush can slightly touch your teeth. Keep the tip slowly
moving along the gum, and pause between teeth for a while to make sure
the water flows through. Repeat the same operations on each side of
teeth until all the teeth are cleaned.

Cleaning
Maintenance
Handle Battery Replacement
If any special liquid will be filled in the water tank, please clean the tank
in advance. Inject some warm water in the water tank.
Point the jet tip to the sink. Turn on the device until the tank is empty. It
will help avoid tip blockage and prolong the service life of the device.
The device shall be cleaned with a soft cloth and neutral wear-free
detergent.
Do remember to unplug the device before cleaning.
Take off the water tank and start operating the oral irrigator until no
residue can be found in it.
1. Unplug the device after cleaning is completed, place the water tank
upside down on a plate until it is totally dry, and then keep it with the
clean body at a cool and dry place. It shall be kept in a package or
appropriate paper box in case of long-term storage.
2. You may consult the distributor or call us for relevant maintenance
methods in case of any malfunction.
3. Please do not dismantle or try to fix the product; otherwise, we are not
responsible for the maintenance of any fault arising therefrom.
4. If the wire is damaged, please seek help at the designated mainte-
nance point or qualified repair shops. Do not replace the charger wire or
plug by yourself.
5. Where the warranty period expires, we are still sincere at your service,
but a proper amount of material and service fee will be collected.
If the battery needs to be replaced,
please insert the battery key to the hole
on the battery lock and switch to unlock
when the battery ejects. After battery
replacement, the memory function will be
reset, meaning that it will automatically
return to the last configuration. Please
take out the battery if it will not be used
for a long period in order to avoid battery
leakage that damages the device.
13
Common Failures and Handling Methods
Leakage between the
nozzle or the tongue
cleaner and the handle knob
Cracking of periodontal
pocket brush
The brush is seriously
worn Replace a new brush
Pressure is not enough
Device cannot start Motor does not run
Confirm whether there is
power input, or contact the
seller for repair
Buttons on the handle
cannot be used
Check whether the
battery fails or is
assembled incorrectly
Assemble or replace a
new battery
We guarantee that this product is free of defects in materials and
processes, and the warranty period is one year from the date of
purchase. Please keep your receipt as proof of the date of purchase. If
the product is not abused, misused, altered or damaged after purchase
but used in accordance with the User Instruction, we will replace any
defective part(s) of the product at our sole discretion. This Limited
Warranty does not cover the attachments such as standard nozzles,
tongue scrapers, periodontal pocket brushes, orthodontic nozzles or
dental plaque nozzles. This warranty gives the user a clear legal rights,
and you may also have other appropriate rights depending on country of
residence.
Thank you again for purchasing Nicefeel Oral Irrigator!
Improper installation
of the water tank
Reinstall the water tank
and press on the water
tank firmly
Leakage on the hose
connecting the base to the
handle of the oral irrigator
Hose damage
Replace it by yourself
or contact dealer for
after sale service
Water tank leaking
The spring is not
installed or is installed
at incorrect position
Install the spring in the
correct position, or contact
the dealer for repair
The brush does not fit
well with the handle
Remove the brush and
insert it well
Phenomenon Reason Handling Method

FCC Warning
This device complies with part 15 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, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment 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 interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, 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 equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-Consult the dealer or an experienced radio/TV technician for help.
The device has been evaluated to meet general RF exposure requirement. The device can be used in
portable exposure condition without restriction.