Homeowners Guide

Troubleshooting
NOTICE: Turn off the water supply to the valve before performing
any maintenance.
This troubleshooting guide is for general aid only. For service and
installation issues or concerns, call 1-800-4KOHLER.
Symptoms Probable Cause/Recommended
Action
1. Only hot or cold water from
the water outlet.
A. Inlet supplies are reversed. See
″Reverse the Inlet Supplies″ section
in the Installation Guide.
B. Check filter screens for
blockage. Clear if necessary.
2. Fluctuating or reduced flow
rate.
A. External condition variation
such as reduced pressure.
B. Check filter screens for
blockage. Clear if necessary.
C. Make sure that the minimum
flow rate is sufficient for supply
conditions.
D. Make sure that dynamic inlet
pressures are nominally balanced
and sufficient.
E. Make sure that inlet
temperature differentials are
sufficient.
F. Service stops are not fully
opened. Rotate both service stops
clockwise until fully open.
G. Check thermostatic
performance; replace the
thermostatic cartridge, if necessary.
3. No flow from shower control
water outlet.
A. Filter screens are blocked. Clear
filter screens.
B. Hot or cold supply failure.
Replace the supply valve.
C. Flow control cartridge not
working. Check and replace if
necessary.
D. Service stops are shut off.
Rotate both service stops clockwise
until fully open.
4. Blend temperature drift. A. Indicates operating conditions
have changed. No action is
needed.
B. Refer to symptom 2.
1145568-5-A 14 Kohler Co.