Kohler K-3399 Assembly instructions

Homeowners Guide
One-Piece Toilet
Mproduct numbers are for Mexico (i.e. K-12345M)
Los números de productos seguidos de
Mcorresponden a México (Ej.
K-12345M)
Français, page “Français-1”
Español, página “Español-1”
K-3399
114950-5-A

Thank You For Choosing Kohler Company
Thank you for choosing the Bold Look of Kohler. Kohler craftsmanship
offers you a rare combination of proven performance and graceful
sophistication that will satisfy you for years to come. The
dependability and beauty of your Kohler toilet will surpass your
highest expectations. We’re very proud of our products here at Kohler
and we know you will be too.
Please take a few minutes to study this Homeowners Guide. Pay
special attention to the Care and Cleaning instructions.
All information in this manual is based upon the latest product
information available at the time of publication. At Kohler, we
constantly strive to improve the quality of our products. We reserve
the right to make changes in product characteristics, packaging or
availability at any time without notice.
How to Use This Manual
This manual is designed to help you troubleshoot and repair any
problems that may develop with the operation of the toilet. If a
problem occurs:
Refer to the Troubleshooting section to determine a probable
cause.
Follow the maintenance and repair instructions in this manual to
correct the problem.
Check the Service Parts section to determine the part numbers for
any replacement parts necessary.
Use the information on the back cover of this manual to contact
Kohler Company to order parts, or for help if you cannot correct
the problem.
114950-5-A 2 Kohler Co.

1. Theory of Operation
Operating Features
Your Kohler Power-Lite toilet is a one-piece toilet that flushes
completely and efficiently using only a small quantity of water per
flush. The Power-Lite operating system uses an electric, motorized
pump to create a thorough flush.
The Kohler Power-Lite Operating System consists of the following
basic component groups:
The vitreous china bowl and tank, which directs the flushing
water flow and houses the Power-Lite system.
The pump, which houses the motor, electronic controls, and
impeller.
The fill valve, which refills the tank to the correct water line and
sends water to the bowl to establish proper trap seal depth after
each flush.
The flush button which initiates the flush and refill process.
Float
WaterLine
Fill Valve
RefillTube
TripButton
WaterFlow
Trip
Button Water
Flow
Fill Valve
Assembly BowlSupply
Hose
Water Flow
PumpFlush
Assembly
RimSupply
Hose
Kohler Co. 3 114950-5-A

Theory of Operation (cont.)
Flush Cycle
The flush cycle consists of the following steps:
When either flush button is pressed, an electronic signal is sent to
the circuit board (which is safely housed within the pump).
NOTE: Both flush buttons work the same and produce a full
flushing cycle.
This triggers a timing sequence that turns on the pump motor for
a specific length of time.
The pump sends pressurized water to the front jet and rim
through the connecting hoses.
This initiates the siphon action in the bowl, and thoroughly
flushes the side walls.
As the water in the tank lowers during the pumping action, the
fill valve float drops.
This turns on the fill valve to refill the tank.
While the tank is filling, water is also sent through the refill tube
to return the bowl to the proper trap seal level.
After the pump turns off, the fill valve continues sending water to
both the tank and bowl (through the refill tube).
The fill valve turns off when water reaches the proper water line
in the tank.
2. Safety Features
Your Kohler toilet combines outstanding function, comfort, and
performance with remarkable style and class. It contains the following
specific safety features:
Your toilet exceeds ASME performance standards for
low-consumption toilets.
It was designed with a large glazed trapway to keep waste
moving without blockage.
114950-5-A 4 Kohler Co.

Safety Features (cont.)
Your Kohler toilet is scratch and abrasion-resistant. It is crafted
from a clay mixture that is fired at an intense heat to vitrify the
clay and fuse the glaze. Its surface won’t stain, discolor, rust, or
fade. Every component in your Kohler toilet is specifically
designed to increase the toilet’s useful life.
The pump and toilets are listed by Underwriter’s Laboratory (UL)
for safety. The fill valve is approved by International Association
of Plumbing and Mechanical Officials (IAPMO) for use in this
system.
The pump motor and circuit board are sealed in a housing
separate from the impeller (which propels the water). The motor
turns the impeller by a magnetic coupling. This ensures a
separation between the impeller and the motor with electronic
controls. There are no gaskets or O-rings that can wear out and
allow water to leak into the motor compartment.
Your new Power-Lite toilet is designed to be flushed once every
70 seconds. This feature assures adequate time for the tank to fill
with water and provides consistent operation of the Power-Lite
motor. However, a second flush can be made 35 seconds after the
first flush. If you activate the second flush at this interval, you
must wait 105 seconds to activate a third flush. If you attempt a
third flush before the 105 seconds have elapsed, the toilet will not
flush. This is normal operation.
An overflow slot between the tank and bowl allows water to
drain into the bowl and out the trapway if the water level in the
tank becomes too high.
This toilet is available with an optional cover lock that prevents
unauthorized access to the tank and pump. This instruction is
written under the assumption that the cover lock is present. If
this option was not selected, then ignore steps associated with
cover lock operation.
3. Care and Cleaning
NOTE: See the special instructions below before you clean Artist
Edition products.
Clean the outside surface of your vitreous china toilet with mild soap
and warm water. Wipe the entire surface completely dry with a clean,
soft cloth. You may use soft abrasive cleaners when necessary to clean
your toilet. Do not use strong abrasive cleaners, as they will scratch
and dull the surface. Wipe any splashes of cleaner solutions from
plastic or plated surfaces immediately. Use toilet bowl cleaners on the
Kohler Co. 5 114950-5-A

Care and Cleaning (cont.)
inside of the bowl only.
If the surface becomes excessively dirty, use a general purpose cleaner
such as: Fantastik
®
All Purpose, Lysol
®
Basin, Tub and Tile Cleaner,
Soft Scrub
®
Multi Purpose, Scrub Free
®
Disinfectant Bathroom Cleaner,
Clorox Clean-Up
®
, Spic and Span Liquid, Comet
®
Liquid Bathroom
Cleaner, Scrubbing Bubbles
®
Bathroom Cleaner, Bar Keeper’s Friend
®
,
or Bon Ami
®
.
Over time, hard water deposits may clog toilet rim holes and
trapways. To clean, use a commercial cleaner that is recommended for
removing hard water deposits. Follow the cleaner manufacturer’s
instructions.
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 Company shall not be responsible or liable for any tank fitting
damage caused by the use of cleaners containing chlorine (calcium
hypochlorite).
For Artist Edition toilets: Do not use bristle brushes or abrasive
sponges to clean the surface of your Artist Edition toilet. They will
scratch the decorated surface. Gold and Platinum used on decorative
products are like fine jewelry. Use only warm water to clean, and dry
with a soft cloth. Do not let cleaners sit or soak on Artist Edition
surfaces. Rinse and wipe the toilet surface to prevent soap buildup. If
the surface of your Artist Edition toilet becomes excessively dirty, use
Glass Plus
®
or a liquid dish soap with water.
114950-5-A 6 Kohler Co.

4. Connect Wiring to the Flush Button
CAUTION: Risk of property damage. Ensure that the flush
button plug is completely dry before reconnecting. If it has been
submersed, wipe it down with a dry rag and let it dry.
Perform the following steps to reconnect the flush button wire to the
flush button:
Open the circuit breaker for the toilet.
Using the supplied wrench, turn the locknut in order to release
the hook and remove the tank cover.
NOTE: The modular jack and plug are similar to a modular
telephone jack and plug.
Align the modular plug into the modular jack of the flush button.
Push the plug into the jack until it snaps into place.
Position the wire so it is above the full water level in the tank.
Close the circuit breaker for the toilet.
Test the toilet for proper operation.
Replace the tank cover.
Using the supplied wrench, turn the locknut in order to engage
the hook on the tank cover.
TripButton
ModularPlug
Kohler Co. 7 114950-5-A

5. Unplug the Fill Valve
Perform the following steps in order to unplug the fill valve:
Shut off the water supply.
Open the circuit breaker for the toilet.
Using the supplied wrench, turn the locknut in order to release
the hook and remove the tank cover.
Remove the fill valve arm assembly by rotating it 1/8 turn
counterclockwise.
NOTE: Hold the cup firmly as the water pressure may be
unexpectedly high.
Cover the uncapped fill valve body opening with an inverted cup
in order to prevent water spray.
Turn the water supply on and off a few times in order to flush
out any blockage.
Shut off the water supply.
Use a damp cloth or sponge to remove any residue on the seal
diaphragm.
Replace the fill valve arm assembly and engage the lugs.
Rotate 1/8 turn clockwise.
Replace the tank cover.
SealDiaphragm
Fill Valve Body
Float
Lug
Float Elevation
Screw Fill Valve Arm
Assembly
Cover here to
preventoverspray
114950-5-A 8 Kohler Co.

Unplug the Fill Valve (cont.)
Using the supplied wrench, turn the locknut in order to engage
the hook on the tank cover.
Turn the water on.
Close the circuit breaker for the toilet.
Test the toilet for proper operation.
Kohler Co. 9 114950-5-A

6. Remove Fill Valve Components
Remove the Fill Valve Assembly Leaving Fill Valve Riser in Place
Perform the following steps in order to remove only the fill valve
assembly:
Shut off the water supply.
Open the circuit breaker for the toilet.
Using the supplied wrench, turn the locknut in order to release
the hook and remove the tank cover.
Remove the refill tube from the fill valve assembly.
Grasp the blue coupling at the riser and turn it counterclockwise
1/8 turn.
Gently pull the fill valve assembly clear of the coupling.
Remove the Fill Valve Assembly Including the Fill Valve Riser
Perform the following steps to remove the fill valve including the riser
and hush tube:
Shut off the water supply.
Open the toilet’s circuit breaker.
Using the supplied wrench, turn the locknut in order to release
the hook and remove the tank cover.
Remove the refill tube from the fill valve assembly.
Hush Tube
Coupling
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Washer
Nut
Hush Tube
Coupling
Nut
Washer
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
114950-5-A 10 Kohler Co.

Remove Fill Valve Components (cont.)
Remove the supply tubing, supply nut, washer, and locknut from
below the tank.
Gently remove the fill valve and fill valve riser assembly.
If required, remove the washer from the bottom of the tank.
Kohler Co. 11 114950-5-A

7. Install Fill Valve Components
Install the Fill Valve Assembly on the Riser
Perform the following steps in order to reassemble the fill valve
assembly on the fill valve body:
Carefully align the fill valve assembly with the coupling on the
riser.
Rotate the fill valve assembly clockwise 1/8 turn to fully engage
it.
Plug the refill tube into the fill valve assembly.
Replace the tank cover.
Use the supplied wrench to turn the locknut to engage the hook
on the tank cover.
Turn the water on.
Close the circuit breaker for the toilet.
Test the toilet for proper operation.
Install the Fill Valve Assembly and Fill Valve Riser Assembly
Perform the following steps to install the fill valve assembly in the
toilet:
If required, install or replace the washer at the bottom of the tank.
Insert the fill valve riser assembly into the hole in the tank.
Hush Tube
Coupling
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Washer
Nut
Hush Tube
Coupling
Nut
Washer
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
114950-5-A 12 Kohler Co.

Install Fill Valve Components (cont.)
Assemble the locknut, washer, and supply nut below the tank.
Insert the refill tube with the tube restrictor into the valve.
Turn the water on.
NOTE: The level in the tank may require adjustment in order to
provide enough water for the pump to operate for the flush
duration but not too much water to overflow into the bowl. If
required, adjust the float elevation by turning the long plastic screw.
Close the circuit breaker for the toilet.
Test the toilet for proper operation.
Ensure that the tank refills to the proper level.
Install the tank cover.
Use the supplied wrench to turn the locknut to engage the hook
on the tank cover.
Kohler Co. 13 114950-5-A

8. Replace the Flush Button
Remove the Flush Button
CAUTION: Risk of injury or product damage. Do not let the
plug get wet.
CAUTION: Risk of injury or product damage. Handle vitreous
china very carefully.
Use the following steps to remove the flush button from the toilet:
NOTE: The flush button must be aligned before it can be installed.
Observe and note the outward orientation of the flush button.
Open the electrical circuit breaker for the toilet.
Use the supplied wrench to turn the locknut to release the hook
and remove the tank cover.
NOTE: The plug operates just like a modular telephone plug.
Press the tab on the modular plug at the flush button connection
to release the internal latch.
Unplug the cord from the back of the flush button.
Squeeze the snap-fit fingers on the flush button inside the tank.
TripButton
ModularPlug Snap-FitFingers
TripButton
114950-5-A 14 Kohler Co.

Replace the Flush Button (cont.)
While squeezing, push the flush button from inside the tank
outward until it is free.
Install the Flush Button
CAUTION: Risk of injury or product damage. Handle vitreous
china very carefully.
Use the following steps to install the flush button on the toilet:
NOTE: The flush button must be aligned before it can be reinstalled.
Align the button to the correct orientation at the hole in the tank.
Push the button gently into the tank until it snaps into place.
NOTE: The plug operates just like a modular telephone plug.
Align the tank wiring modular plug into the modular jack of the
trip button and snap it into place.
Ensure that the flush button wiring is supported above the water
level.
Replace the cover on the tank.
Use the supplied wrench to turn the locknut to engage the hook
on the tank cover.
Close the circuit breaker for the toilet.
Test the toilet for proper operation.
Kohler Co. 15 114950-5-A

9. Replace the Pump
Remove the Pump
NOTE: The pump has no serviceable parts. It is replaced as an
assembly. Retain all parts for reuse unless otherwise directed.
Should replacement ever be necessary, perform the following steps:
Turn off the water.
Drain the tank by flushing.
Open the circuit breaker for the toilet.
Use the supplied wrench to turn the locknut to release the hook
and remove the tank cover.
Remove the junction box cover at the toilet and save the two
cover screws.
Disconnect the power wires at the toilet’s junction box.
Slide the strain relief out of the slot in the back of the vitreous
china tank.
Unplug the modular plug and cord from the back of the flush
button.
NOTE: The larger upper hose is the jet hose and the lower smaller
hose is the rim hose. Both hoses are attached to the pump by
clamps. The upper hose is held in place in the tank by a fitting. The
lower hose slides into a hole and is held in place by friction.
BowlSupplyHose
RimSupplyHose
StrainRelief
Flow
Restrictor
PumpFlush
Assembly
RimSupply
Hose
RimHose
Supply
ToOpen
Clamp
To Close
Clamp
ToOpen
Clamp HoseClamps
Bowl
Supply
Hose
PumpFlush
Assembly
Pump Flush
Assembly
114950-5-A 16 Kohler Co.

Replace the Pump (cont.)
Loosen and remove the upper hose clamp by sliding the
clamping heads apart.
Pull the lower rim supply hose out of the vitreous china hole.
Remove the upper jet rim hose from the pump and remove the
pump with the lower rim hose attached.
Remove the lower rim hose clamp by sliding the clamping heads
apart.
Work the rim hose off of the pump.
NOTE: The flow restrictor slip fits into the rim opening in the pump
and is held in place by the rim hose. When the hose is removed
from the pump, the restrictor may remain in the hose or on the
pump. Save the restrictor for reuse.
Use needle-nosed pliers to remove the flow restrictor from the
rim hose or from the hose connection at the pump.
Inspect the lower rim hose for any damage. Replace if necessary.
Inspect the upper jet hose for any damage. Replace if necessary.
Install the Pump
Perform the following steps in order to install a new pump:
NOTE: The flow restrictor slip fits into the rim opening in the
pump, and is held in place by the rim hose.
Use needle-nosed pliers to insert the flow restrictor in the rim
opening on the pump as shown.
Position the lower rim hose clamp on the rim hose.
Install the low rim hose on the pump.
Install the rim hose clamp by sliding the clamping heads together.
Position the upper jet hose clamp on the jet hose.
Position the pump in the tank and align it with the hose
connections.
Push the lower rim supply hose into the vitreous china hole.
Install the upper jet hose onto the pump.
Install the upper hose clamp by sliding the clamping heads
together.
Plug the modular plug and cord into the back of the flush button.
Kohler Co. 17 114950-5-A

Replace the Pump (cont.)
Slide the strain relief into the slot in the back of the vitreous china
tank.
NOTE: Use the proper termination devices as required by any local
electrical codes.
Connect the power wires at the pump junction box.
Install the junction box cover using the two cover screws.
Close the circuit breaker for the toilet.
Turn on the water.
Observe that the tank refills.
Test the toilet for proper operation.
Replace the tank cover on the tank.
Use the supplied wrench to turn the locknut to engage the hook
on the tank cover.
One-Year Limited Warranty — USA and Canada
KOHLER
®
plumbing fixtures, faucets and fittings are warranted to be
free of defects in material and workmanship for one year from date of
installation.
Kohler Co. will, at its election, repair, replace or make appropriate
adjustment where Kohler Co. inspection discloses any such defects
occurring in normal usage within one year after installation. Kohler
Co. is not responsible for removal or installation costs.
To obtain warranty service, contact Kohler Co. either through your
Dealer, Plumbing Contractor, Home Center or E-tailer, or by writing
Kohler Co., Attn.: Customer Service Department, 444 Highland Drive,
Kohler, WI 53044, USA, or by calling 1-800-4-KOHLER from within the
USA, 1-800-964-5590 from within Canada and 001-877-680-1310 from
within Mexico.
Implied warranties including that of merchantability and fitness for
a particular purpose are expressly limited in duration to the duration
of this warranty, Kohler Co. disclaims any liability for special,
incidental or consequential damages. Some states/provinces do not
allow limitations on how long an implied warranty lasts, or the
exclusion or limitation of special, incidental or consequential damages
so these limitations and exclusions may not apply to you. This
warranty gives you specific legal rights. You may also have other
rights which vary from state/province to state/province.
114950-5-A 18 Kohler Co.

One-Year Limited Warranty — USA and Canada (cont.)
This is our exclusive written warranty.
Notes:
1. There may be variation in color fidelity between catalog images and
actual plumbing fixtures.
2. Kohler Co. reserves the right to make changes in product
characteristics, packaging or availability at any time with out notice.
COPYRIGHT © 1999, 2000, 2001, 2002 BY KOHLER CO.
One-Year Warranty — Mexico
KOHLER CO.
It is recommended that at the time of purchase, you verify that all
accessories and components are complete in this package.
This Kohler product is warranted to be free of defects in material and
workmanship for one (1) year from the date of purchase as shown on
the invoice or receipt.
1. Kohler Co. will only service its commercialized products through its
authorized distributors.
2. To obtain warranty service, please present the invoice and
corresponding warranty.
3. Through its authorized distributors, Kohler Co. promises to repair
the defective product or provide a new replacement or an equivalent
model (in those cases that the model has been discontinued) when the
product is beyond repair, without any charge to the consumer.
4. The time of repair will not exceed six (6) weeks commencing on the
date the product is received.
5. It is recommended that the consumer save the invoice or receipt as
additional protection, as it may substitute the warranty in the case that
there is a discrepancy in the validity of the warranty.
EXCEPTIONS AND RESTRICTIONS
The Warranty will not be valid in the following cases:
1. When the product is not operated in accordance with the
instructions concerning use and operation set forth in the owner’s
manual or installation instructions, and when the recommendations
and warnings included are not observed.
2. When the product has been modified or dismantled partially or
totally; or has been used in a negligent fashion and as a consequence
Kohler Co. 19 114950-5-A

One-Year Warranty — Mexico (cont.)
has suffered damages attributable to the consumer, individual, or
hardware not authorized by Kohler Co.
3. This warranty does not cover the damages as a result of disaster
such as fire or acts of God, including flooding, earthquake, or electric
storms, etc. To obtain a list of distributors in your area where you can
exercise your rights under this warranty, please call 001-877-680-1310.
KOHLER CO., KOHLER, WI 53044 U.S.A.
IMPORTER:
INTERNACIONAL DE CERMICA, S.A. DE C.V.
AV. CARLOS PACHECO NO. 7200
CHIHUAHUA, CHIH., MEXICO C.P. 31060
TEL: [phone]
10. Troubleshooting Guide
Troubleshooting Tips
The troubleshooting guide below is meant for general aid only. The
manufacturer has preset all adjustments in this toilet. The only
adjustments that may be required will be part of a replacement
procedure.
Ensure that electrical power is available to the toilet while it is in
use.
Disconnect power to the toilet before servicing.
Perform checks as listed in the troubleshooting table for the
identified symptom.
Any problems not covered in this chart should be referred to
your installer or dealer.
For warranty service, contact your dealer or wholesale distributor.
If you need to locate a Kohler Authorized Service Representative in the
United States, call our Customer Service Department at
1-800-4-KOHLER (1-800-456-4537).
For general information, call one of the following numbers:
In the U.S.A., call 1-800-4-KOHLER (1-800-456-4537)
In Mexico, call 001-877-680-1310
In Canada, call 1-800-694-5590
114950-5-A 20 Kohler Co.