Kohler K-28209-NA Instructions D'installation page 18

Symptoms
4. Maximum blend
temperature too hot or too
cold.
5. Continuous flow.
6. Only cold water flows
from the outlets.
7. Fluctuating or reduced
flow rate. Valve is
functioning properly.
8. Blend temperature drift
or temperature cycling.
9. Water leaking from the
valve. CAUTION: Risk of
personal injury or product
damage. Turn OFF the
main power and water
supply.
1430527-2-B
Probable Cause
A. Incorrect maximum
temperature setting.
B. If the above recommended
action does not correct the
symptom, the control or valve
requires servicing.
A. System will not switch OFF.
A. Hot water supply is either not
turned ON or not connected to
the valve inlet.
B. Hot water inlet is blocked.
C. The hot water supply is
exhausted.
D. If none of the recommended
actions for the above issues
correct the symptom, the valve
requires servicing.
A. Valve inlets may be blocked.
B. Fittings/Sprayface may be
blocked.
C. Water outlet pressure is low.
D. Fluctuating supply pressure.
E. Water supply temperatures
are not within the
recommended range.
A. Fluctuating water supply
temperature.
B. Pressure difference greater
than 5 psi (34.5 kPa) between
the hot and cold supply lines.
C. If none of the recommended
actions for the above issues
correct the symptom, the valve
requires servicing.
A. Connections are not secure.
B. Seals are worn or damaged.
C. Internal leak.
Recommended Action
A. Refer to the digital control homeowners guide for
maximum temperature adjustment instructions.
B. Contact your Kohler Co. ASR.
A. Turn OFF the water and power supply and contact
your Kohler Co. Authorized Service Representative
(ASR).
A. Check if the hot water supply is turned ON and
connected to the valve inlet.
B. Check the hot water inlet screen for blockage.
Clean or replace the inlet screen.
C. Allow time for the water heater to come up to
temperature.
D. Contact your Kohler Co. ASR.
A. Check the valve inlets for blockage or debris. Clean
the inlet screens. Refer to the "Clean the Inlet
Screens" section.
B. Clean the sprayfaces and any screens in your
fittings.
C. Check that the flow rate is at or above the
minimum rate required. Refer to "Specifications"
section.
D. Verify that the dynamic inlet pressures are within
specifications. Refer to "Specifications" section.
E. Check if inlet water temperatures are within the
recommended range.
A. Check the inlet temperature differentials and verify
that they are sufficient. Refer to "Specifications"
section.
B. Install pressure regulators to bring the supplies
within 5 psi (34.5 kPa) of each other.
C. Contact your Kohler Co. ASR.
A. Check all connections. Make adjustments as
needed.
B. Order a seal service pack and replace all seals.
C. Unit requires overhaul. Contact your Kohler Co.
ASR.
18 Kohler Co.