Kohler K-10675 Operating manual

Maintenance Guide
Electronic Valve
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-10675, K-10676, K-10678, K-10679
1108712-5-C

Table of Contents
EC Declaration of Conformity ............................. 3
Important Information ................................... 4
Your Kohler Electronic Valve .............................. 4
Control Stop Valve Operation ............................. 6
Remove The DC Sensor ................................ 7
Replace The Battery ................................... 8
Install The DC Sensor .................................. 9
Remove the Solenoid .................................. 10
Install The Solenoid ................................... 11
Clean the Screen/Replace the Piston ...................... 12
Clean/Replace the Diaphragm ........................... 14
Replace the Vacuum Breaker ............................ 16
Replace the Button Assembly ............................ 17
Five Year Limited Warranty .............................. 17
Troubleshooting ...................................... 19
Service Parts ........................................ 24
1108712-5-C 2 Kohler Co.

EC Declaration of Conformity
declare under our sole responsibility that our products, ELECTRONIC FLUSH VALVES, models:
We,
Kohler Company
444 Highland Drive, Kohler, WI 53044
Phone [phone]
EC DECLARATION OF CONFORMITY
K-10673
to which this declaration relates, are in conformity with the following standards:
Electromagnetic Compatibility Directive 89/336/EEC of 3 May 1989 as Amended by
92/31/EEC of 28 April 1992 and 93/68/EEC, Article 5 of 22 July 1993, based on:
• IEC 61000/ IEC 61000-3-:
"Electromagnetic Compatibility (EMC)";
Part 3: "Limits".
Section 2. "Limits for harmonic current emissions (equipment input current up to and including
16A per phase" (2000).
Section 3. "Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage
supply systems, for equipment with rated current <16 A per phase and not subjected to
conditional connection" (1995 + A1:2001).
• EN 61000-6-2/ EN 61000-6-2:
"Electromagnetic Compatibility (EMC) – Part 6-2: Generic standards – Immunity for industrial
environments" (2001).
• EN 55022 Class B:
"Information technology equipment – Radio disturbance characteristics – Limits and methods of
measurements" (1998 A1:2000 + A2:2003).
Low Voltage Directive 73/23/EEC of 19 February 1973 as Amended by 93/68/EEC, Article 13 of
22 July 1993, based on:
• EN 60730/1:
"Specification for Automatic Electrical Controls for Household and Similar Use. General
Requirements".
• EN 60730/2/8:
"Specification for Automatic Electrical Controls for Household and Similar Use. Particular
Requirements for Electrically Operated Water Valves, Including Mechanical Requirements".
Timothy J. Stessman
Codes & Standards Dept.
Kohler Company
November 18, 2008
DateSignature
November 18, 2008 08
K-10677
K-10674
K-10678
K-10675
K-10679
K-10676
Kohler Co. 3 1108712-5-C

Important Information
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including
interference that may cause undesired operation.
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/television technician
for help.
Modifications: Any modifications made to this device that are not
approved by Kohler Co. may void the authority granted to the user by
the FCC to operate this equipment.
This Class B digital apparatus complies with Canadian ICES-003.
Your Kohler Electronic Valve
Your new Kohler exposed electronic valve is precision engineered and
constructed of premium quality materials to provide trouble-free
operation even under the hardest water conditions.
Design Features
The valve is designed specifically for use with 1-1/2″(1.9 cm) top spud
1108712-5-C 4 Kohler Co.

Your Kohler Electronic Valve (cont.)
toilets as offered by Kohler Company and others.
The valve is supplied with factory preset timing values. No
programming or adjustment is required.
Depending upon use,a9Vlithium battery can be expected to last for
two to three years before replacement is required.
Flush Operations
The exposed electronic valve provides the following flushing
operations:
A wave activated main flush operation: Shortly after the
individual departs the fixture, the valve provides a main flush
that lasts for several seconds.
An automatic 24-hour flush operation: After 24-hours of non-use,
the valve produces a full flush.
Low Battery Indication
The 9 V lithium battery can be expected to last for two to three years
before replacement is required. When the battery reaches a certain
point in its lifetime, the valve announces the low battery condition by
continuously flashing an LED whenever a user is in range. The
batteries are easily replaced as described in the section ″Replace the
Batteries″in this guide.
Replacement batteries can be purchased from drugstores or other stores
stocking batteries. The required battery is a standard 9 V lithium.
Seasonal Use
The exposed electronic valve is not designed for operation in freezing
conditions. If freezing conditions are expected, isolate and drain the
valve along with whatever other winterization steps are taken for the
facility.
Mobile Use
The exposed electronic valve is not designed for use in moving
environments such as boats.
Kohler Co. 5 1108712-5-C

Control Stop Valve Operation
NOTICE: Refer to this section throughout the Maintenance Guide
when instructed to close and open the control stop valve.
NOTE: A flat-blade screwdriver must be used to remove the stop
cap and adjust the valve position.
Using a flat-blade screwdriver, pry the vandal-resistant stop cap
from the control stop.
To close the stop valve: Turn the valve screw clockwise until the
end of travel is reached.
To open the stop valve: Turn the valve screw counterclockwise
until the end of travel is reached.
When done, place the cap on the control stop, then gently tap the
control stop into place with the screwdriver handle.
Wall Flange
Wall Tube
Control Stop
Stop Cap
1108712-5-C 6 Kohler Co.

Remove The DC Sensor
NOTE: When purchasing replacement battery, selecta9Vlithium
battery.
Close the control stop valve.
Using the supplied hex wrench, remove the screw from the cap.
Remove the cap by lifting from the valve body.
Disconnect the plug to the solenoid by pulling the connectors
apart.
Position the cap on its side.
Using a needle nose pliers or equivalent tool, grasp the plastic
clip that holds the DC sensor in place in the cap.
Pull the clip from the cap.
Turn the cap over and slide the sensor into your hand.
NOTE: The lithium battery inside the sensor may be considered
hazardous waste. Discard the old sensor in accordance with any
applicable codes.
If replacing the DC sensor, discard the old DC sensor and battery.
Cap Assy
Screw
DC Sensor
Clip
Kohler Co. 7 1108712-5-C

Replace The Battery
If required, remove the sensor from the cap as described in the
″Remove the DC Sensor″section.
Using a small Phillips screwdriver, remove the two screws from
the back of the DC sensor.
Using a sharp-edged screwdriver or knife, insert the tip between
the side of the DC sensor and the small white tab of the back
cover. Pry the back cover out, the lift the cover off of the DC
sensor.
NOTE: The lithium battery may be considered hazardous waste.
Discard the old battery in accordance with any applicable codes.
Remove and discard the old battery. If necessary, use a small
flat-blade screwdriver to pry the battery from the DC sensor.
Align the metal poles on the new 9 V lithium battery to contact
the metal electrodes in the DC sensor.
Insert and push the battery into place in the DC sensor until it
snaps over the side tab.
Press the cover into place until it snaps into place on both sides.
NOTICE: Do not overtighten the screws. The plastic threads can be
easily damaged.
Retighten the two screws into the DC sensor cover.
DC Sensor
Battery
DC Cover
Screw
1108712-5-C 8 Kohler Co.

Install The DC Sensor
NOTE: The DC sensor must be installed as shown in the
illustration.
Hold the cap horizontally with the sensing holes down and align
the DC sensor assembly with the cap.
Slide the DC sensor assembly into the cap small-side first until
the sensor eyes align with the holes in the cap.
Insert the clip between the back of the DC sensor and the case, as
shown. Push it in until the bottom of the tab stops on the sensor.
Connect the DC sensor connector to the solenoid connector on the
valve. Ensure the arrows on both connectors are aligned.
NOTICE: Ensure that the wires are not caught between the cap and
the valve body.
Place the cap on the valve body and install the hex screw.
Open the control stop valve.
Replace the vandal-resistant cap on the control stop.
Verify the valve functions.
Cap Assy
Screw
DC Sensor
Clip
Kohler Co. 9 1108712-5-C

Remove the Solenoid
Close the control stop valve.
Using the supplied hex wrench, remove the screw from the cap.
Remove the cap by lifting from the valve body.
Pull the connectors apart to disconnect the plug from the
solenoid.
Temporarily store the cap and DC sensor assembly in a safe
place.
Using a Phillips screwdriver, remove both solenoid screws.
Grasp the solenoid, then pull it off the valve body. Ensure that the
O-rings have been removed with the solenoid.
Body
Solenoid Assy.
Screw
1108712-5-C 10 Kohler Co.

Install The Solenoid
Ensure that both O-rings are installed on the bottom of the new
solenoid.
Align the solenoid with the connecting wire facing the outside of
the unit, as shown.
Align the solenoid to the holes in the valve body.
Retighten the two screws into the solenoid.
Align the two arrows on the connectors so that they point to one
another, then connect them.
NOTICE: Ensure that the solenoid wires are not caught between the
cap and the valve body.
Place the cap on the valve body, then reinstall the hex screw.
Open the control stop valve.
Verify the valve functions.
Body
Solenoid Assy.
Screw
Kohler Co. 11 1108712-5-C

Clean the Screen/Replace the Piston
NOTE: An inlet screen is provided to keep debris from damaging
the valve’s solenoid. The screen may require periodic cleaning.
Close the control stop valve.
NOTE: If the unit has not flushed since the stop valve was closed,
the inlet arm may still be pressurized.
Using a strap wrench, slowly turn the inlet arm valve
counterclockwise. Water pressure in the inlet arm will release.
Loosen the inlet arm valve nut and slip it back on the inlet arm.
Using a strap wrench, loosen the nut on the vacuum breaker at
the bottom of the valve body.
Remove or turn the valve body to get access to the retainer.
Using a 1/2″socket, remove the retainer from the inlet arm.
NOTE: The flow restrictor is not expected to come out with the
screen. However, be prepared to catch it if it falls. If required,
reinstall the flow restrictor.
Remove the screen from the inlet arm. If necessary, carefully use a
needle-nosed pliers to pull the screen from the inlet arm. Do not
damage the screen.
Gently brush and rinse all debris from the screen. If required, use
vinegar to remove hard water deposits.
Retainer
Screen
Inlet Arm
Restrictor
Body Assy.
Tube
Tube Nut
Nut
Stop Control
Fiber
Washer
Vacuum
Breaker Assy.
1108712-5-C 12 Kohler Co.

Clean the Screen/Replace the Piston (cont.)
Reinstall the screen with the tapered screen end pointing
outward.
Thread the retainer into the inlet arm.
Using a socket wrench, slightly tighten the retainer. Do not over
tighten the retainer.
Position and align the valve body to both the control stop valve
and the vacuum breaker.
Ensure that the friction washer is installed between the valve
body and the vacuum breaker.
Thread the vacuum breaker nut onto the bottom of the valve
body.
Thread the inlet arm valve nut onto the stop valve.
Using a strap wrench, tighten both nuts.
Open the control stop valve.
Verify the valve functions.
Kohler Co. 13 1108712-5-C

Clean/Replace the Diaphragm
NOTICE: The valve is heavy. Hold it firmly to avoid dropping it.
Close the control stop valve.
NOTE: If the unit has not flushed since the stop valve was closed,
the inlet arm may still be pressurized.
Using a strap wrench, slowly turn the inlet arm valve nut
counterclockwise. Water pressure in the inlet arm may release.
Loosen the inlet arm valve nut and slip it back on the inlet arm.
Using a strap wrench, loosen the vacuum breaker tube nut at the
bottom of the valve body.
Remove the valve and place it on a flat surface.
Using the hex wrench (supplied), remove the screw from the cap.
Remove the cap by lifting from the valve body.
Pull the connectors apart to disconnect the plug from the
solenoid.
Temporarily store the cap and DC sensor assembly in a safe
place.
Using the hex wrench, loosen the inlet arm setscrew.
Using a strap wrench, loosen and remove the inlet arm from the
valve body.
Remove the diaphragm.
Body Assy.
Nut
Tube Nut
Inlet
Arm
Vacuum
Breaker
Assy.
Stop
Control Body
Solenoid Assy.
Setscrew
Inlet Arm
Nut
Cap
Screw
Diaphragm
Diaphragm
Support
1108712-5-C 14 Kohler Co.

Clean/Replace the Diaphragm (cont.)
Rinse any debris from the diaphragm.
NOTE: If required, use a pliers to remove the diaphragm support.
If removed, insert a new diaphragm support ring in the inlet arm.
With the bumpy side facing out from the inlet arm, insert the
new diaphragm.
Thread the inlet arm into the valve body until it reaches the end
of travel. This may require several turns.
Using a 2.5 mm hex key, tighten the setscrew on the inlet arm.
Align the arrows on the connectors, then connect the DC sensor
connector to the solenoid connector.
NOTICE: Ensure that the wires are not caught between the cap and
the valve body.
Place the cap on the valve body and reinstall the hex screw.
Open the control stop valve.
Verify the valve functions.
Kohler Co. 15 1108712-5-C

Replace the Vacuum Breaker
Close the control stop valve.
NOTE: If the unit has not flushed since the stop valve was closed,
the inlet arm may still be pressurized. Use manual flush button to
release pressure.
Using a large adjustable wrench, loosen the large tube nut at the
base of the valve body. Let the tube nut slide down the tailpiece.
Gently rotate the top of the valve body away from you while
pulling the top of the tailpiece toward you. Separate the tailpiece
from the valve body. The vacuum breaker should now be exposed
for removal.
Remove the loose fiber washer and vacuum breaker from the
tailpiece. Discard both the fiber washer and vacuum breaker.
Install a new vacuum breaker into the tailpiece and place a new
fiber washer on the top of the vacuum breaker.
Gently rotate the tailpiece and valve body back together until the
large tube nut can be threaded onto the bottom of the valve body.
Using a large adjustable wrench, tighten the large tube nut.
Open the control stop valve.
Verify the valve functions.
Tailpiece
Valve Body
Escutcheon
Coupling Nut
Rubber Seal
Fiber Washer
Large Tube Nut
Inlet Arm Nut
Control Stop
Fiber Washer
Vacuum Breaker
1108712-5-C 16 Kohler Co.

Replace the Button Assembly
Close the control stop valve.
NOTE: If the unit has not flushed since the stop valve was closed,
the inlet arm may still be pressurized. Use manual flush button to
release pressure.
Carefully place a properly sized spanner wrench or a pair of
needle-nose pliers into the holes on the end of the flush button.
Remove the flush button assembly from the valve body.
NOTE: The flush button can only be serviced as a complete
assembly. There are no serviceable internal parts.
Carefully thread a new flush button assembly into the valve body.
Tighten with a spanner wrench or needle nose pliers.
Open the control stop valve.
Verify the valve functions.
Five Year Limited Warranty
KOHLER
®
Electronic Faucets, Valves and Controls
FIVE-YEAR LIMITED WARRANTY
Kohler Co. warrants that its electronic faucets, valves and controls will
be free of defects in material and workmanship during normal
residential use for five years from the date the product is installed.
This warranty applies only to electronic faucets, valves and controls
Holes
Flush Button
Assembly
Valve Body
Kohler Co. 17 1108712-5-C

Five Year Limited Warranty (cont.)
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 faucet, valve or control.
If the electronic faucets, valves or controls are used commercially or are
installed outside of North America, Kohler Co. warrants that the
faucet, valve or control 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 1-800-4KOHLER
(1-800-456-4537) from within the USA and Canada, and
001-877-680-1310 from within 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 on 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
1108712-5-C 18 Kohler Co.

Five Year Limited Warranty (cont.)
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 chrome. This will void the warranty.
Troubleshooting
•This troubleshooting guide is for general aid only. The steps are
recommended rather than required. This guide should provide an
indication of the probable fault and a suggested correction. For
warranty service, contact your dealer or wholesale distributor.
•For replacement parts, call the Kohler Customer Care Center at
1-800-4-KOHLER from 7 AM to 6 PM Central Standard Time or
order online 24 hours at www.kohler.com.
•All work should be performed by properly qualified or licensed
personnel as required by local codes.
Kohler Co. 19 1108712-5-C

Troubleshooting (cont.)
Symptom Probable
Cause Recommended Action
1. No flow. A. Water is
not turned
on.
•Verify that the water supply is
turned on and that water
pressure is at a minimum of 35
psi (2.4 bars).
•Verify that the control stop is
fully in the open position.
B. Loose
connection.
•Remove the valve cover.
•Check the connection from the
sensor to the solenoid.
C. Wires are
pinched or
damaged.
•Remove the valve cover.
•Inspect the wires for cuts or
damage.
•If required, order a new
solenoid or a new sensor
assembly.
•Verify that both wires are
tucked inside the cover before
reassembling.
D. Battery life
has
expired.
•NOTE: The unit requires one 9
volt lithium battery. This item
is not available from Kohler
but can be purchased at
convenience stores.
•Follow the directions of
″Replace the Batteries″section
in this guide.
E. Solenoid is
broken.
•Order a new solenoid service
kit.
F. Sensor
eyes are
scratched.
•Replace the sensor assembly.
Follow the directions of
″Remove the DC Sensor″and
″Install the DC Sensor″sections
in this guide.
G. Bleed hole
in the
diaphragm
is plugged
or debris is
on seal.
•Follow the directions of
″Clean/Replace the
Diaphragm″section in this
guide.
•NOTE: Take care to replace the
diaphragm in its seat before
installing it into the valve body.
1108712-5-C 20 Kohler Co.