Kohler K-3901 Assembly instructions

Homeowners Guide
Toilet
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K-3901
1212876-5-F

IMPORTANT SAFEGUARDS
READ ALL INSTRUCTIONS BEFORE USING
When using electrical products, especially when children are present, basic safety precautions should
always be followed, including the following:
CAUTION: Risk of personal injury. Do not remove the UV lamp protective cover. Eye damage
may result from viewing the UV light directly. Always be certain the lamp is off before opening the
protective cover. The flashing nightlight indicates the UV lamp is in operation.
CAUTION: Risk of personal injury. Replacement of the UV lamp must only be performed by
qualified service personnel.
DANGER: Risk of electric shock. Connect only to a circuit protected by a Ground-Fault
Circuit-Interrupter (GFCI)*.
*Outside North America, this device may be known as a Residual Current Device (RCD).
WARNING: To reduce the risk of burns, electrocution, fire, or injury to persons:
Close supervision is necessary when this product is used by or near children, the elderly, or
invalids. Adjust the temperature of the seat for the elderly, those who are incapacitated, or persons
with sensitive skin.
Use this product only for its intended use as described in this manual. Do not use attachments not
recommended by Kohler Co.
Never operate this product if it has a damaged cord or plug, if it is not working properly, if it has
been dropped, damaged, or dropped into water. Return the product for examination and repair.
Keep the cord away from heated surfaces.
Never block the air openings of the product. Keep the air openings free of lint, hair, and the like.
Never use while sleeping or drowsy.
Never drop or insert any object into any opening or hose.
Do not use outdoors or operate where aerosol spray products are being used or where oxygen is
being administered.
Connect this product to a properly grounded outlet only. See the ″Grounding instructions″section.
This product conforms to applicable provisions of US 21 CFR, Chapter 1, Subchapter J, Radiological
Health.
SAVE THESE INSTRUCTIONS
Important Information
SKU Electrical Water Supply Pressure Listings
K-3901 120 V, 15/A min., 20 A
recommended, 60 Hz, 1780 W 30 psi (206 kPa) min. - 80 psi (551 kPa) max. cUL, cUPC, NOM
1212876-5-F 2 Kohler Co.

Grounding Instructions
WARNING: Risk of electric shock, fire, or personal injury. This product must be grounded and
connected only to a dedicated, nominal 120 VAC, 60 Hz circuit protected by a minimum 15 A
Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device (RCD).
This product should be grounded. In the event of an electrical short circuit, grounding reduces the
risk of electric shock by providing an escape wire for the electric current. This product is equipped
with a cord having a grounding wire with a grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded.
DANGER: Risk of electric shock. Improper use of the grounding plug can result in a risk of
electric shock.
If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either
flat blade terminal. The wire with insulation having an outer surface that is green with or without
yellow stripes is the grounding wire.
Check with a qualified electrician or service personnel if the grounding instructions are not
completely understood, or if in doubt as to whether the product is properly grounded.
Do not use an extension cord with this product.
Grounded
Outlet
Grounding
Plug
Kohler Co. 3 1212876-5-F

Features
IMPORTANT! For proper operation, confirm that the remote control and toilet are linked. To ensure the
remote control and toilet are linked, see the remote control Homeowners Guide.
NOTE: Many of the features can be adjusted, enabled, or disabled using the remote control. Specific
directions for these procedures are listed later in this manual.
NOTE: There are different remote control options. The premium remote control is shown.
Flushing and Operation Features
Two Flushing Options - (not shown) Users may choose [flush-eco] for a 0.6 gallon (2.27 L) or
[flush-full] for a 1.28 gallon (4.5 L) flush.
Automatic Flushing - (not shown) When enabled, this feature automatically flushes the toilet after
the user stands up, lowers the seat, or leaves the area 60 seconds after use. The toilet arrives with
this feature enabled.
Front Motion Sensor - When auto open/close [near],[medium],or[far] is enabled, the cover opens
automatically when the front motion sensor is activated. The toilet arrives with this feature enabled,
set at [near].
Auto Open Side Sensor - When enabled, this feature automatically opens the seat when the motion
sensor light on the right side of the toilet senses movement. This feature is automatically enabled
when the front sensor is enabled. The side sensor can also be enabled and the front sensor disabled
by selecting [side sensor - lid only] or [side sensor - lid and ring]. A blue light on the right side of
the toilet, which is projected on the floor, allows the seat to be raised and lowered without touching
the toilet. Break the beam of light using your foot to open or close the seat. The toilet arrives with
this feature enabled.
Animated Flush - When animated flush is enabled a graphic will appear on the remote control
detailing the progress of the flushing process. The toilet arrives with this feature enabled.
Manual Controls
Auto Open Ring
Motion Sensor
Air Outlet -
Feet Heater
Remote
Control
Docking
Station
AUX In
Ambient Light
Bowl Light
Lid
Ring
Cleansing Wand
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Features (cont.)
Toilet Sleep Mode - The toilet can be programmed to conserve energy. When toilet sleep mode is
enabled the toilet will enter and exit an energy conservation mode at the times programmed. The
toilet arrives with this feature disabled.
Deodorizer - The deodorizer eliminates or reduces unpleasant odors when enabled. It will begin
operation when the user sits down. The toilet arrives with the deodorizer feature enabled.
Manual Controls - Allows the user to control basic toilet features without the remote control.
Cleansing Features
Front/Rear Wash - Front and rear wash feature adjustable positioning, adjustable water temperature,
adjustable water pressure, and pulsate and oscillate water action.
Dryer - The dryer features adjustable air temperature and pressure.
Cleansing Wand - The cleansing wand features self cleaning UV options, lighted tip, and removable
spray tip for servicing. The wand can be manually extended for cleaning using the remote control.
Lighting
Ambient Light - Light located on the back sides of the toilet. Gently illuminates the area around the
toilet. Color of the light and brightness is adjustable. The lights can be set to cycle through the
different colors, display a different color each day, or stay the same color. Factory default color is
white.
Bowl Light - Light located on the end of the cleansing wand that illuminates the bowl when the
toilet is activated. The light will only activate when the room is dark. The toilet arrives with this
feature enabled.
Welcome Light- When enabled, the ambient light will automatically turn on when the toilet is
activated. The toilet arrives with this feature enabled.
Night Light - The bowl light and ambient light will automatically turn on in low light conditions
when this feature is enabled. The toilet arrives with this feature enabled.
Heating
Heated Feet - When activated, warm air emanates from the air outlet to warm the users’ feet.
Heated Seat - (not shown) When activated, the seat features an adjustable heating option that will
keep the seat warm. The toilet arrives with this feature enabled.
Music and Sounds
Music - Your toilet is equipped with FM radio, pre-loaded music, Bluetooth
®
capability, SD card
capability, and the ability to play music from external sources.
Welcome Music - When enabled, welcome music will play upon activation of the toilet. The toilet
arrives with this feature disabled.
Key Sounds - When enabled, sounds will help indicate the activation of some toilet features.
NOTE: MP3 and WMA formats are supported by the software. MP4 files are not supported and will not
work.
Aux in - Any type of standard auxiliary music player can be plugged in at one of the two locations
on the docking station or the back of the toilet. Music from the player can be played on the toilet.
Bluetooth - Music can be streamed from any Bluetooth enabled device.
SD Card - An SD card loaded with music files can be inserted in the slot on the back of the toilet.
Maximum capacity is 16 GB.
Cleaning
Automatic Wand Cleansing - Wand UV light cleaning can be programmed using your remote
control. This feature comes enabled, scheduled to occur at 2:00 am every day.
Kohler Co. 5 1212876-5-F

Features (cont.)
Backup Power
Battery Backup - A battery pack located on the back of the toilet is designed to provide emergency
power in the event of a power outage. The battery pack requires eight AA batteries.
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Features - Back Panel
Power Button - Turns the power on and off.
Auxiliary Input - Plug in any standard external music source to play the music through the
speakers.
Deodorizer - The deodorizer eliminates or reduces unpleasant odors when enabled. It will begin
operation when the user sits down. The toilet arrives with the deodorizer feature enabled. The
deodorizer cartridge should be replaced when it loses effectiveness.
Speakers - Internal speakers.
Supply Hose - Water supply hose.
Air Filter - Filters air before it enters the blower for the dryer and heated feet option. The filter
should be checked once every six months and cleaned if needed.
External Speaker Output - Allows additional speakers to be connected to the system.
Docking Station Power Cord Connection - Docking station power is connected here.
External Antenna - Optional FM antenna (included) is connected here.
SD Card Slot - Insert an SD card loaded with music in the slot.
USB Connection - USB port for authorized personnel to update the on-board software.
Backup Battery - Holds eight AA batteries that will flush the toilet in the event of a power outage.
Power Button
Deodorizer
Docking Station
Power Cord Connection
External Speaker Outlets Air Filter
Supply Hose
Speakers
Auxiliary Input
External Antenna
Battery Backup
USB Port
SD Card Slot
Kohler Co. 7 1212876-5-F

Manual Operation
The basic functions of the toilet can be controlled manually using the buttons located on the right side of
toilet.
Cover and Seat - The cover and seat can be lifted manually to open and close them. Gently lift the
cover and seat to open them.
Flushing - Push the flush button to flush the toilet manually.
NOTE: When the manual cleansing features are activated using the manual buttons, they will default to
the middle temperature, pressure, and position settings.
Front Wash - Push the front wash button to activate the cleansing wand for front wash.
Rear Wash - Push the rear wash button to activate the cleansing wand for rear wash.
Dryer - Push the dryer button to activate the dryer.
Cleaning the Cleansing Wand - Press and hold the front or rear button for 2 seconds to extend the
wand for manual cleaning. Repeat to retract the wand.
Care and Cleaning
WARNING: Risk of property or product damage. Do not use in-tank cleaners in your toilet.
Products containing chlorine (calcium hypochlorite) can seriously damage fittings in the tank. This
damage can cause leakage and property damage.
Kohler Co. shall not be responsible or liable for any tank fitting damage caused by the use of cleaners
containing chlorine (calcium hypochlorite).
For best results, keep the following in mind when caring for your KOHLER product:
•Always test your cleaning solution on an inconspicuous area before applying to the entire surface.
•Wipe surfaces clean and rinse completely with water immediately after applying cleaner. Rinse and
dry any overspray that lands on nearby surfaces.
•Do not allow cleaners to soak on surfaces.
•Use a soft, dampened sponge or cloth. Never use an abrasive material such as a brush or scouring
pad to clean surfaces.
Dryer
Rear Wash
Front Wash
Flush
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Care and Cleaning (cont.)
•For Artist Edition Toilets: Treat your decorative product just as you would treat your fine china.
DO NOT use bristle brushes or abrasive-backed sponges. They will scratch decorative surfaces. Use
only warm water to clean. Dry with a cotton cloth or soft sponge.
For detailed cleaning information and products to consider, visit kohler.com/clean. To order Care & Cleaning
information, call 1-800-456-4537.
Kohler Co. 9 1212876-5-F

Servicing the Filters
Servicing the Deodorizer
NOTE: The deodorizer should be replaced every 2 years or when its performance is decreasing.
Remove the deodorizer cartridge assembly by grasping it and gently pulling it out.
Remove the filter from the housing by pushing it through the back side from the vented side.
Insert the replacement filter into the housing.
Reinstall the deodorizer cartridge assembly.
Servicing the Air Filter
NOTE: This procedure should be performed once a year or more often as needed.
Remove the air filter cover.
Remove the air filter.
Clean the air filter using water.
Dry the air filter.
Reinstall the air filter.
Reinstall the air filter cover.
Servicing the Inlet Screen
NOTE: This procedure should be performed once every 6 months.
Air Filter Cover Air Filter Inlet Screen
Deodorizer
Cartridge
Filter
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Servicing the Filters (cont.)
Turn off the water at the water supply stop or main water supply if the supply stop is not
accessible.
Remove the back cover (not shown) if installed.
Remove the clip securing the water supply hose to the water inlet.
Remove the hose from the water supply inlet.
Use a ″L″shaped or needlenose pliers to remove the inlet screen from the water inlet.
Clean all hard water deposits and other material from the inlet screen.
Inspect the inlet screen. If it is in good condition, reinstall it. If the screen is worn or damaged,
replace it.
To reinstall the inlet screen, insert the inlet screen into the inlet aligned as shown.
Reinstall the water supply hose and secure using the clip.
Reinstall the cover (if removed).
Turn on the water supply and check for leaks.
Kohler Co. 11 1212876-5-F

Servicing the Cleansing Wand
NOTE: The cleansing wand spray tip can become clogged with mineral deposits from the water, reducing
spray performance. The spray tip should be cleaned periodically. The length of time between each cleaning
will depend on water quality.
Select [settings].
Select [cleaning].
Select [manual clean].
Select [extend wand]. The cleansing wand will deploy.
Manually clean the wand.
Remove the wand spray tip by inserting a small thin object into the hole on the underside of the
wand, pushing the spray tip up.
Inspect the spray tip. If there is mineral buildup in the spray tip, remove the minerals by soaking
the spray tip in a cleaning solution until the minerals are gone.
Remove any mineral deposits from the spray tip opening in the cleansing wand.
Replace the spray tip if needed.
Reinstall the spray tip once it is clean or install a new spray tip. Make sure the tip is flush with the
surrounding surfaces on the wand. If the spray tip is not flush, it may be damaged or stick as the
wand retracts.
Select [close] when the spray tip has been reinstalled.
Select [home] to return to the main screen or [back] to return to the previous screen.
Spray Tip Cleansing
Wand
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Servicing the Batteries
NOTE: Eight AA batteries are required for the backup battery pack.
When the low battery warning is displayed on the remote control, replace the batteries.
Remove the battery box by pushing the tabs inward and pulling down.
Remove the four cover screws.
Remove recycle the dead batteries.
Install the new batteries.
Reinstall the cover. Secure in place with the four screws.
Reinstall the battery box by inserting it in the slot. Push upward until an audible click is heard.
Troubleshooting
IMPORTANT! This troubleshooting was written for models using the K-7420 premium remote control. If
you are troubleshooting a model with a K-7421 standard remote control, go to the on-line troubleshooting
for the K-7421 remote control.
NOTE: When the remote control is not in use, it will enter standby mode. Press any key on the remote
control screen to activate the screen.
NOTE: If the back light in the window is off, the first touch on the remote control screen activates the
light. The second touch activates the feature.
NOTE: For service parts information, visit the product page at kohler.com/serviceparts.
Start-up
Check/Replace Back Up
Batteries and Restart
System
Battery Pack
Tabs
ok
12:34 am
stop settings
home
home
Kohler Co. 13 1212876-5-F

Troubleshooting (cont.)
When the toilet is first installed or the power fails, when power is restored or turned on the toilet
will automatically go into start-up mode.
If the toilet does not function correctly upon completing the start-up sequence, or it fails to start,
contact the Customer Care Center using the numbers located on the back page of this manual.
Blockage
To clear the toilet when there is a blockage, a standard plunger with an insert works best. Use the
remote control to open the valve before using the plunger.
If a blockage requires the use of a snake, use the remote control to open the valve before using the
snake. Close the valve when the blockage is cleared.
Small Children
The automatic flush and cleansing features are activated by a sensor located under the seat. Small
children may not be tall enough to be detected by the sensor.
Flushing Troubleshooting
Symptoms Probable Causes Recommended Action
1. Toilet does not flush. A. Toilet is blocked. A1. Open the trapway valve using the
remote control; select [settings] >
[cleaning] >[manual clean] >[open
bowl valve]. Use a plunger to
remove the blockage. For extreme
blockage a snake may be used.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
B. Remote control is not linked to
the toilet. B1. Reconnect the toilet using the remote control and selecting;
[settings] >[maintenance] >[learn
remote], then following the
directions on the remote control
screen.
B2. Call the Customer Care Center
using the information provided on
the back page of this manual.
C. Remote control is not working. C. See the Remote Control
Troubleshooting section in the
remote control Homeowners Guide.
D. The trapway valve is not
opening or has an obstruction. D. Use the remote control to open and close the trapway several times by
selecting; [settings] >[cleaning] >
[manual clean] >[open bowl
valve] >[close] repeatedly.
2. Automatic flush does not
work. A. Automatic flush is not enabled. A. Use the remote control to enable automatic flush by selecting;
[settings] >[feature settings] >
[flushing] >[auto flush].
B. User is a small child. B. The automatic flush feature
requires a sensor under the seat to
be enabled. Children less than 48’
(1.2 m) tall may not activate this
sensor. Flush the toilet using the
remote control.
3. There is no water flow to
the toilet. A. Water supply is not turned on. A. Turn on the main water supply.
1212876-5-F 14 Kohler Co.

Troubleshooting (cont.)
Flushing Troubleshooting
Symptoms Probable Causes Recommended Action
B. Inlet screen is blocked. B. Clean or replace the inlet screen
following the directions in the
servicing section of this manual.
4. The toilet flushes
unexpectedly. A. Automatic flush is enabled. A. When automatic flush is enabled the toilet will flush 6 seconds after
the user stands up. To disable the
automatic flush, on the remote
control select; [settings] >[feature
settings] >[flushing] >[auto
flush]. The check mark and [auto
flush] will appear grey when the
feature is disabled.
B. The overflow sensor is
activated. B1. No action is needed if occurrence of the toilet flushing by itself is
isolated. When the overflow sensor
is activated, it will automatically
flush the toilet to lower the water
level.
B2. If unexpected flushing occurs
repeatedly call the Customer Care
Center using the information
provided on the back page of this
manual.
5. The water level in the
bowl is too high. A. The toilet has a blockage. A. Open the trapway valve using the remote control; select [settings] >
[cleaning] >[manual clean] >
[open bowl valve]. Use a plunger
to remove the blockage. For
extreme blockage a snake may be
used.
6. There is no water in the
bowl or the water slowly
dissipates.
A. The water has evaporated when
there is extended period of time
between uses.
A. Flush the toilet to refill the bowl.
B. There is a blockage that does
not allow the trapway valve to
close all the way.
B1. Use the remote control to open and
close the trapway valve several
times by selecting; [settings] >
[cleaning] >[manual clean] >
[open bowl valve] >[close]
repeatedly.
B2. Open the trapway valve using the
remote control; select [settings] >
[cleaning] >[manual clean] >
[open bowl valve]. Use a plunger
to remove the blockage. For
extreme blockage a snake may be
used.
Cover and Seat Troubleshooting
Symptoms Probable Causes Recommended Action
1. Cover strikes back wall
when opening. A. Flange rough-in is too close to the wall. Rough-in should be
minimum of 11-3/4″(298 mm).
A1. Adjust the finished wall or flange to
an 11-3/4″(298 mm) or greater
rough-in.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
Kohler Co. 15 1212876-5-F

Troubleshooting (cont.)
Cover and Seat Troubleshooting
Symptoms Probable Causes Recommended Action
2. Cover and/or seat does
not open automatically. A. Sensors are not enabled. A. Use the remote control to enable the sensors by selecting; [settings] >
[feature settings] >[auto open and
close] and select your desired
setting of [near],[medium],[far],
[side sensor - lid and ring] or [side
sensor - lid only].
B. Automatic open and close is set
to [side sensor - lid only].B. Use the remote control to enable the sensors by selecting; [settings] >
[feature settings] >[auto open and
close], and select [side sensor - lid
and ring] or [near],[medium] or
[far].
C. Sensor lenses are blocked. C. Clean all dirt or debris away from
the sensor lens. The lens is located
on the right side of the toilet next
to the heated feet air outlet.
D. Motion sensor is not set with
the correct sensitivity level. D1. Use the remote control to enable the sensor by selecting; [settings] >
[feature settings] >[auto open and
close] and [near],[medium] or
[far].
D2. Call the Customer Care Center
using the information provided on
the back page of this manual.
3. Cover sways when it
reaches the full open
position.
A. Some cover sway is normal. A1. No action required for minimal
cover sway.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
4. Seat fails to open when
side sensor is activated. A. Sensor is not enabled. A. Use the remote control to enable the sensors by selecting; [settings] >
[feature settings] >[auto open and
close], and select your desired
option, [near],[medium],[far] or
[side sensor - lid and ring].
B. Sensor is set to [side sensor -
lid only].B. Use the remote control to enable the sensors by selecting; [settings] >
[feature settings] >[auto open and
close], and select [side sensor - lid
and ring] or [near],[medium] or
[far].
C. Side sensor lens is blocked or
dirty. C. Clean all dirt or debris away from the sensor lens. The lens is located
on the right side of the base of the
toilet near the middle.
5. Cover and/or seat raises
when it should not. A. Sensor sensitivity is set too high. A. Use the remote control to change the sensor setting by selecting;
[settings] >[feature settings] >
[auto open and close] and [near] or
[medium].
B. There is an object in the hinge
area of the cover. B1. There is a sensor located in the hinge to avoid pinching. Remove
any objects from the hinge area.
B2. Call the Customer Care Center
using the information provided on
the back page of this manual.
1212876-5-F 16 Kohler Co.

Troubleshooting (cont.)
Cleansing Seat Troubleshooting
Symptoms Probable Causes Recommended Action
1. Cleansing wand fails to
fully retract. A. Cleaning cycle of cleansing was interrupted. A. Retract the cleansing wand using the remote control by selecting;
[settings] >[cleaning] >[manual
clean] >[extend wand] >[close].
B. The cleansing wand spray tip is
not installed correctly. B1. Reinstall the cleansing wand spray tip following the servicing
instructions in this document.
B2. Call the Customer Care Center
using the information provided on
the back page of this manual.
2. The cleansing wand does
not fully extend, and
while activated emits a
grinding noise.
A. The seal protecting against
waterflow into the cleansing
seat is dry.
A1. Extend the wand using the remote
control by selecting; [settings] >
[cleaning] >[manual clean] >
[extend wand]. Clean the cleansing
wand using a liberal application of
liquid soap. After rinsing the wand,
apply more liquid soap for
lubrication and select [close] on the
remote control.
3. The bowl light, located in
the tip of the cleansing
wand, does not work.
A. The light is not enabled. A1. Enable the light using the remote
control by selecting; [settings] >
[feature settings] >[lighting] >
[bowl light] >[home]. Increase the
brightness by selecting [settings] >
[feature settings] >[lighting] and
adjusting the bowl light scroll bar
up.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
4. Cleansing wand partially
retracts, hesitates, then
fully retracts.
A. This is proper operation. When
the cleansing wand hesitates it
is being rinsed off, then it fully
retracts.
A. No action needed.
5. Cleansing wand moves
erratically or stops. A. The cleansing wand cycle was interrupted. A1. Turn the power to the toilet off using the power button on the back
of the toilet, wait 10 seconds, turn
the power back on.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
6. Dryer air is too hot. A. Temperature is set too high. A1. Lower the dryer air temperature
using the remote control by
selecting; [dryer] > and moving the
[temp.] scroll bar lower.
A2. Call the Customer Care Center
using the information provided on
the back page of this manual.
7. Dryer does not start
immediately. A. The wand has not completed retracting after the cleansing
wash cycle has been completed.
A. There is a brief delay while the
wand fully retracts, then extends
again for the dryer cycle.
8. Cleansing wand fails to
extend, cleansing features
cannot be activated.
A. The user is a small child. A. The cleansing features require a
sensor under the seat to be
activated. Children less than 48’
(1219 mm) tall may not activate this
sensor. Flush the toilet using the
remote control.
Kohler Co. 17 1212876-5-F

Troubleshooting (cont.)
Cleansing Seat Troubleshooting
Symptoms Probable Causes Recommended Action
B. The cleansing wand is not
responding to the remote. B1. Turn the power to the toilet off using the Power button on the back
of the toilet, wait 10 seconds. Turn
the power back on.
B2. Call the Customer Care Center
using the information provided on
the back page of this manual.
Power Troubleshooting
Symptoms Probable Causes Recommended Action
1. There is no power to the
toilet. A. Toilet is not plugged in or the GFCI is tripped. A. Plug in the toilet or confirm the GFCI has not been tripped.
2. Toilet beeps when
unplugged or plugged in. A. This is normal operation. A. No action needed.
3. Remote control tells you
the backup battery is low. A. Backup batteries are dead. A. Replace the batteries.
Lights Troubleshooting
Symptoms Probable Causes Recommended Action
1. Back panel lights do not
illuminate. A. Light is not enabled. A. Activate the light using the remote control by selecting: [lighting] and
moving the scroll bar up for
[ambient light].
B. Light is burned out. B. Call the Customer Care Center
using the information provided on
the back page of this manual.
2. The bowl light is
unexpectedly blinking at
night.
A. The light is the UV cleaning
indicator. The UV cleaning cycle
is in process.
A. No action needed.
3. The welcome light and/or
nightlight are not lit. A. The welcome light and/or nightlight are not enabled. A. Using the remote control, enable the lights by selecting: [settings] >
[feature settings] >[lighting] and
then enabling the desired features
by selecting the corresponding
radio button.
4. The back panel lights are
the wrong color. A. Change the default color. A. Using the remote control, enable the lights by selecting [lighting],
then selecting the [ambient light]
tab. Click on the color square
under [default color] until the
desired color appears.
5. The back panel lights do
not change color. A. The light setting is [default color].A. Using the remote control, enable the lights by selecting [lighting],
then selecting the [ambient light]
tab. Select the [by date] or
[dynamic] options.
1212876-5-F 18 Kohler Co.

Troubleshooting (cont.)
Music and Sounds Troubleshooting
Symptoms Probable Causes Recommended Action
1. Music will not play. A. External speakers are selected,
but there are no external
speakers connected.
A. Using the remote control, change the
speakers setting by selecting:
[music] >[options] >[toilet]
B. Volume is all the way down. B. Using the remote control, adjust the
volume setting by selecting: [music]
>[SD] or [aux] and adjust the
[volume] scroll bar up.
C. The device being used to input
the music is not compatible. C. Use a different device to input the music.
2. The key sounds are not
audible when toilet is in
use.
A. The key sounds are not
enabled. A. Using the remote control, enable the key sounds by selecting: [settings] >
[feature settings] >[key sound] >
[enable].
Remote Control Compliance
FCC ID: N82-KOHLER009
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.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
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 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.
RF Exposure Warning
This equipment complies with FCC, IC and CE radiation exposure limits set forth for an uncontrolled
environment.
This equipment should be installed and operated with a minimum distance of 7-7/8″(200 mm) between the
radiator and your body.
CANADA IC: 4554A-KOHLER009
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions:
1. This device may not cause interference, and
Kohler Co. 19 1212876-5-F

Remote Control Compliance (cont.)
2. This device must accept any interference, including interference that may cause undesired operation of the
device.
This transmitter with its antenna complies with Industry Canada RF Exposure Limits for General
Population/Uncontrolled Exposure.
This Class B digital apparatus complies with Canadian ICES-003.
Warranty
KOHLER Intelligent Toilet and C3 Cleansing Seat Three-Year Limited Warranty
Kohler Co. warrants that its toilets with integrated cleansing functionality (″Intelligent Toilets″) and electric
cleansing seats will be free of defects in material and workmanship during normal residential use for three
years from the date the product is installed. This warranty applies only to intelligent toilets and electric
cleansing seats installed in the United States of America, Canada and Mexico (″North America″).
If a defect is found in normal residential use, Kohler Co. will, at its election, repair, provide a replacement
part or product, or make appropriate adjustment where Kohler Co.’s inspection discloses any such defect.
Damage caused by accident, misuse, or abuse is not covered by this warranty. Improper care and cleaning
will void the warranty*. Proof of purchase (original sales receipt) must be provided to Kohler Co. with all
warranty claims. Kohler Co. is not responsible for labor charges, installation, or other incidental or
consequential costs other than those noted above. In no event shall the liability of Kohler Co. exceed the
purchase price of the intelligent toilet or electric cleansing seat.
If the intelligent toilets or electric cleansing seats are used commercially or are installed outside of North
America, Kohler Co. warrants that the intelligent toilet or electric cleansing seat will be free from defects in
material and workmanship for one (1) year from the date the product is installed, with all other terms of this
warranty applying except duration.
If you believe that you have a warranty claim, contact your Home Center, Dealer, Plumbing Contractor or
E-tailer. Please be sure to provide all pertinent information regarding your claim, including a complete
description of the problem, the product, model number, the date the product was purchased, from whom the
product was purchased and the installation date. Also include your original invoice. For other information,
or to obtain the name and address of the service and repair facility nearest you, write Kohler Co., Attn:
Customer Care Center, Kohler, Wisconsin 53044 USA, or by calling 1-800-4-KOHLER (1-800-456-4537) from
within the USA and Canada, and 001-800-456-4537 from within Mexico, or visit www.kohler.com within the
USA, www.ca.kohler.com from within Canada, or www.mx.kohler.com in Mexico.
THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KOHLER CO. AND/OR SELLER
DISCLAIM ANY LIABILITY FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states/provinces do not allow limitations of how long an implied warranty lasts or the exclusion or
limitation of such damages, so these limitations and exclusions may not apply to you. This warranty gives
the consumer specific legal rights. You may also have other rights that vary from state/province to
state/province. This warranty is to the original consumer purchaser only, and excludes product damage
due to installation error, product abuse, or product misuse, whether performed by a contractor, service
company, or the consumer.
This is Kohler Co.’s exclusive written warranty.
* Never use cleaners containing abrasive cleansers, ammonia, bleach, acids, waxes, alcohol, solvents or other
products not recommended for stainless steel or polypropylene plastic. This will void the warranty.
1212876-5-F 20 Kohler Co.