Kohler K-528-K-NA Installation Guide download pdf (Page 15)

Troubleshooting (cont.)

Troubleshooting Table

Symptoms Probable Cause Recommended Action

B. Hot water inlet is blocked. B. Check the hot water inlet screen for

blockage. Clean or replace the inlet

screen.

C. The hot water supply is

exhausted.

C. Allow time for the water heater to

come up to temperature.

D. If none of the recommended

actions for the above issues

correct the symptom, the valve

requires servicing.

D. Contact your Kohler Co.

Authorized Service Representative.

7. Fluctuating or reduced

ﬂow rate. Valve is

functioning properly.

A. Valve inlets may be blocked. A. Check the valve inlets for blockage

or debris. Clean the inlet screens.

Refer to the ″Clean the Inlet

Screens″ section.

B. Fittings/Spray faces may be

blocked.

B. Clean the spray faces and any

screens in your ﬁttings.

C. Water outlet pressure is low. C. Check that the ﬂow rate is at or

above the minimum rate required.

Refer to ″Speciﬁcations″ section.

D. Fluctuating supply pressure. D. Verify that the dynamic inlet

pressures are within speciﬁcations.

Refer to ″Speciﬁcations″ section.

E. Water supply temperatures are

not within the recommended

range.

E. Check if inlet water temperatures

are within the recommended range.

8. Blend temperature drift or

temperature cycling.

A. Fluctuating water supply

temperature.

A. Check the inlet temperature

differentials and verify they are

sufficient. Refer to ″Speciﬁcations″

section.

B. Pressure difference greater than

5 psi (34.5 kPa) between the hot

and cold supply lines.

B. Install pressure regulators to bring

the supplies within 5 psi (34.5 kPa)

of each other.

C. If none of the recommended

actions for the above issues

correct the symptom, the valve

requires servicing.

C. Contact your Kohler Co.

Authorized Service Representative.

9. Water leaking from the

valve.

CAUTION: Risk of

personal injury or

product damage. Turn off

the main power and

water supply.

A. Connections are not secure. A. Check all connections. Make

adjustments as needed.

B. Seals are worn or damaged. B. Order a seal service pack and

replace all seals.

C. Internal leak. C. Unit requires overhaul. Contact

your Kohler Co. Authorized Service

Representative.

10. Hot water only, the valve

shuts down.

A. Hot and cold lines are reversed. A. Switch hot and cold water supply

connections. Verify the hot water

supply is connected to the inlet

marked ″H″ and the cold water

supply is connected to the inlet

marked ″C.″

Kohler Co. 15 1145587-2-B

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Kohler K-528-K-NA Installation Guide Page 15

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