Kallista P29511 Guide D'installation page 20

Troubleshooting (cont.)
Symptoms
4. Blend temperature drift.
5. Hot water in cold supply or
cold water in hot supply.
6. Maximum blend temperature
setting too hot or too cold.
7. Water leaking from the valve
body.
8. Flow knob or temperature
knob is stiff to operate.
1170591-2-A
Probable Cause/Recommended
Action
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.
A. Indicates operating conditions
have changed. No action is
needed.
B. Refer to symptom 2.
C. Hot supply temperature
fluctuation.
D. Supply pressure fluctuation.
A. Indicates crossflow. Replace
check valve.
A. Indicates incorrect maximum
temperature setting; refer to the
"Adjust the Hot Temperature
Limit" section.
B. Refer to symptom 4.
C. Refer to symptom 5.
A. Seal(s) worn or damaged.
Obtain service kit and replace
seal(s).
B. If leaking from around the
temperature spindle, replace the
thermostatic cartridge.
A. Impaired free movement of
internal components. Replace the
appropriate cartridge.
B. Supply pressures are too high.
Fit pressure reducing valve.
20 Kallista