Kohler K-3607 User Manual

Homeowners Guide

Toilet and Bidet Seat

K-3607

M product numbers are for Mexico (i.e. K-12345M) Los números de productos seguidos de M corresponden a México (Ej. K-12345M) Français, page “Français-1” Español, página “Español-1”

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Thank You For Choosing Kohler Company

Thank you for choosing Kohler Company. Your Kohler Company product reﬂects the true passion for design, craftsmanship, artistry, and innovation Kohler Company stands for. We are conﬁdent its dependability and beauty will surpass your highest expectations, satisfying you for years to come.

All information in this guide is based upon the latest product information available at the time of publication. At Kohler Company, we strive to fulﬁll our mission of improving the level of gracious living for each person who is touched by our products and services. We reserve the right to make changes in product characteristics, packaging, or availability at any time without notice.

Please take a few minutes to review this guide. Pay special attention to the care and cleaning instructions.

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Long Flush

Short Flush

Trip Button

Water Flow

Fill Valve

Refill Tube

Trip Button

Fill Valve Assembly

Water Flow

Pump Flush Assembly

Bowl Supply Hose

Rim Supply Hose

Float

Water Line

Water Flow

Theory of Operation

Operating Features

Your Kohler toilet is a one-piece toilet that ﬂushes completely and efficiently using only a small quantity of water. The operating system uses an electric, motorized pump to create a thorough ﬂush. The long trip button selects a trip time that is adequate for heavy loads. An even shorter ﬂush, and less quantity of water is used when the short trip button is used for light loads.

The operating system consists of the following basic component groups:

The vitreous china bowl and tank, which directs the ﬂushing water ﬂow and houses the 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 trip button which initiates the ﬂush and reﬁll process. The selected button determines how much water is ﬂushed through the bowl.

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Theory of Operation (cont.)

Flush Cycle

The ﬂush cycle consists of the following steps:

When either trip button is pressed, an electronic signal is sent to the circuit board (which is safely housed within the pump).

This triggers a timing sequence that turns on the pump motor for a speciﬁc length of time. The length of time depends upon which trip button was pressed. The pump runs longer for a long ﬂush.

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.

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.

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.

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Safety Features (cont.)

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 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 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.

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:

•

Use a mild detergent such as liquid dishwashing soap and warm water for cleaning. Do not use abrasive cleaners that may scratch or dull the surface.

•

Carefully read the cleaner product label to ensure the cleaner is safe for use on the material.

•

Always test your cleaning solution on an inconspicuous area before applying to the entire surface.

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Care and Cleaning (cont.)

•

Do not allow cleaners to sit or soak on the surface.

•

Wipe surfaces clean and rinse completely with water immediately after cleaner application. Rinse and dry any overspray that lands on nearby surfaces.

•

Use a soft, dampened sponge or cloth. Never use an abrasive material such as a brush or scouring pad to clean surfaces.

•

For Artist Edition Toilets: Gold and Platinum used on decorative products are like ﬁne jewelry. Use only warm water to clean, and dry with a soft cloth.

For detailed cleaning information and products to consider, visit www.kohler.com/clean. To order Care & Cleaning information, call 1-800-456-4537.

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Fill Valve Body

Lug

Float Elevation Screw

Cover here to prevent overspray.

Seal Diaphragm

Fill Valve Arm Assembly

Float

Unplugging the Fill Valve

Shut off the water supply. Unplug the electrical plug for the toilet from the outlet. 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 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. Turn the water on. Plug the electrical cord for the toilet into the outlet. Test the toilet for proper operation.

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Fill Valve Riser

Coupling

Fill Valve Riser

Coupling

Tube

Refill Tube

Fill Valve Assembly

Refill Tube

Fill Valve Assembly

Removing 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. Unplug the electrical plug for the toilet from the outlet. 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:

Shut off the water supply. Unplug the electrical plug for the toilet from the outlet. Remove the tank cover. Remove the reﬁll tube from the ﬁll valve assembly. Remove the supply tubing, supply nut, washer, and locknut from

below the tank.

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Removing Fill Valve Components (cont.)

Gently remove the ﬁll valve and ﬁll valve riser assembly. If required, remove the washer from the bottom of the tank.

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Fill Valve Riser

Coupling

Fill Valve Riser

Coupling

Tube

Refill Tube

Fill Valve Assembly

Refill Tube

Fill Valve Assembly

Replacing 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.

Connect the reﬁll tube to the ﬁll valve assembly. Replace the tank cover. Turn the water on. Plug the electrical cord for the toilet into the outlet. 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. Assemble the locknut, washer, and supply nut below the tank.

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Replacing Fill Valve Components (cont.)

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.

Plug the electrical cord for the toilet into the outlet. Test the toilet for proper operation. Ensure that the tank reﬁlls to the proper level. Install the tank cover.

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Modular Plug

Trip Button

Trip Button Wire Plug-In

CAUTION: Risk of property damage. Ensure that the modular 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 trip button wire to the trip button:

Unplug the electrical plug for the toilet from the outlet. 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 trip 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. Plug the electrical cord for the toilet into the outlet. Test the toilet for proper operation. Replace the tank cover.

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Snap-Fit Fingers

Trip Button

Modular Plug

Replacing the Trip Button

Remove the Trip 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 trip button from the toilet:

Observe and note the outward orientation of the trip button. Unplug the modular plug for the toilet from the outlet. Remove the tank cover from the tank.

NOTE: The plug operates just like a modular telephone plug.

Press the tab on the modular plug at the trip button connection to release the internal latch.

Unplug the modular plug from the back of the trip button. Squeeze the snap-ﬁt ﬁngers on the trip button inside the tank. While squeezing, push the trip button from inside the tank

outward until it is free.

Install the Trip Button

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CAUTION: Risk of injury or product damage. Handle vitreous china very carefully.

Replacing the Trip Button (cont.)

Use the following steps to install the trip button on the toilet:

NOTE: The trip 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 trip button wiring is supported above the water level.

Place the cover on the tank. Insert the electrical plug for the toilet into the outlet. Test the toilet for proper operation.

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Pump Flush Assembly

Hose Clamps

Strain Relief

Pump Flush Assembly

Rim Supply Hose

Pump Flush Assembly

Rim Supply Hose

To Open Clamp

Flow Restrictor

To Close Clamp

To Open Clamp

Rim Supply Hose

Jet Supply Hose

Replacing 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. Unplug the electrical cord for the toilet from the outlet. Remove the tank cover. Unplug the modular plug and cord from the back of the trip

button.

Jet Supply Hose

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.

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.

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Replacing the Pump (cont.)

Remove the lower rim hose clamp by sliding the clamping heads apart.

Work the rim hose off 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. Plug the electrical cord for the toilet into the outlet.

NOTE: Use the proper termination devices as required by any local electrical codes.

Turn on the water. Observe that the tank reﬁlls.

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Replacing the Pump (cont.)

Test the toilet for proper operation. Place the tank cover on the tank.

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.

For bidet seat troubleshooting, refer to the troubleshooting guide packed with the bidet seat.

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 USA, call 1-800-4-KOHLER (1-800-456-4537) In Mexico, call 001-877-680-1310 In Canada, call 1-800-964-5590

To make ﬁxing the situation easier for both you and us, be sure to provide all the pertinent information. This could include a complete description of the problem, the product name, the model number, the color or ﬁnish, and the date the product was purchased.

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Troubleshooting Guide (cont.)

Troubleshooting Table

Symptoms Recommended Action

1. Poor ﬂush. A. If poor ﬂush occurred for heavy waste while

2. Long ﬁll

cycle. Fill valve does not reﬁll the tank.

using the short trip button, use the long trip button.

B. If poor ﬂush occurred soon after the toilet was

previously used, the tank may not have reﬁlled completely. Check the position of the water supply shut-off valve. If required, fully open the valve or wait longer between ﬂushes.

C. Check for clogged trapway or rim holes. Clean if

necessary.

D. Check for clogged soil pipe or vents. Clean if

necessary.

E. If poor ﬂushes occur with full tanks and clean

trapway, rim holes, soil pipes, and vents, then the pump may be the problem. Check that the pump hoses are undamaged and are properly installed.

F. Power interruptions or extreme low voltage

conditions can prevent pump operations. Check that the proper electrical power is applied to the pump.

G. If the problem persists, replace the pump. A. Remove dirt or obstructions from the valve head.

Flush the lines.

B. The valve inlet or supply line may be plugged.

Clear particles from valve seat.

C. The supply stop may be closed. Fully open the

supply stop valve.

D. The ﬁll valve may be clogged. Unclog the ﬁll

valve. If the ﬁll valve was clogged, install a ﬁlter in the supply line to prevent recurring problems.

E. The ﬂoat valve seal may be cracked or split.

Replace the valve assembly.

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Troubleshooting Guide (cont.)

Symptoms Recommended Action

3. The ﬁll

valve turns

A. Clean the ﬁll valve seat/seat washer. If no debris

is found, replace the piston/seat washer assembly. on and off by itself without the toilet being ﬂushed.

B. Replace the ﬁll valve if the valve ﬂoat sinks. C. The ﬂoat operates the ﬁll valve at too high a level.

Adjust the tank water level if it is too high.

D. Clean the valve inlet, valve head, or supply line.

Flush the lines.

E. Either pump discharge hose may be loose

allowing water to drain from the tank into the

toilet. Ensure that both hoses are properly

connected. Contact a Kohler Service

Representative if necessary.

F. The water line height may be incorrectly set. Set

the correct water line height.

G. Water may be leaking past the jet hose spud

gasket into bowl. Replace spud unit (see

installer/dealer for instructions).

4. The ﬁll

A. Replace the ﬁll valve if the valve ﬂoat sinks.

valve runs continuously.

B. Adjust the tank water level if it is too high. C. Clean the valve inlet, valve head, or supply line.

Flush the lines.

D. An excessively high water supply pressure may

force the water through the ﬁll valve. If required,

reduce external water pressure.

E. Foreign particles may be lodged under the ﬂoat

valve seal. Clear particles from valve seat.

F. The ﬂoat valve seal may be cracked or split.

Replace valve assembly.

5. The ﬁll

cycle is noisy.

A. Partially close the water supply shut-off valve if

the water pressure to the toilet is too high. Check

the toilet performance following any such

adjustment.

B. Remove dirt or obstructions from the valve head.

Flush the lines.

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Troubleshooting Guide (cont.)

Symptoms Recommended Action

6. Pump

draws air during ﬂush.

7. No ﬂush.

The pump does not operate.

8. Circuit

breaker trips frequently.

A. The water line height may be incorrectly set. Set

the correct water line height. Adjust the screw

clockwise in order to raise the elevation of the

ﬂoat and the full water line.

A. The pump is not plugged in or the electrical

power is not on. Plug the three-prong plug from

the pump into Class A GFCI, or turn on power to

toilet.

B. The pump has locked out through its internal

thermal overload switch. Wait two minutes and

retry.

C. The trip button is not plugged in. Plug modular

plug of the trip button wire into jack in trip

button housing.

D. The trip button has failed. Replace the ﬂush

button.

E. The pump has failed. Replace the pump. A. Check that the circuit breaker is properly sized

and has no other electrical loads.

B. If the circuit breaker trips while the pump is

disconnected, have an electrician correct the fault

in the wiring to the toilet.

One-Year Limited Warranty

KOHLER plumbing products 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 (1) year after installation. Kohler Co. is not responsible for removal or installation costs. Use of in-tank toilet cleaners will void the warranty.

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

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One-Year Limited Warranty (cont.)

a particular purpose are expressly limited in duration to the duration of this warranty. Kohler Co. and/or seller 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.

This is Kohler Co.’s exclusive written warranty.

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1055954**

Tank Cover

1048377

Riser

1006734

Nut (Order 2)

1069395

O-Ring

82963

Hanger

85796

Refill Tube

85544

Insert

1001958

Seal Diaphragm

1068034

Fill Valve

1071510

Flow Regulator

85307

Washer

1068389

Hose

**Finish/color code must be specified when ordering.

Service Parts

1007523

Valve

81760

Bushing

83034

Restrictor

87378

Clamp

83821

Hose

84153

Pump

83040

Clamp

83040

Clamp

81891

Hose

81788

Ring

81787

Spud

83427

Strap

83433

Gasket

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81996**

Switch

84999

Anchor (2 ea.)

1057941

Nut

42398

Washer

42397

Nut

1013092**

Bolt Caps (2 ea.)

**Finish/color code must be specified when ordering.

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