THERMOSTAT INSPECTION

PROCEDURE

1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

   

   Tip:

   The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.

   1. Immerse the water inlet with thermostat sub-assembly in water, and then gradually heat the water.

   2. Check that the valve of the water inlet with thermostat sub-assembly opens at the specified temperature.

      Standard Valve Opening Temperature

      80 to 84°C (176 to 183°F)

      If the result is not as specified, replace the water inlet with thermostat sub-assembly.

   3. 

      *a	Valve Lift

      Check the valve lift.

      Standard Valve Lift

      8.0 mm (0.315 in.) or more at 95°C (203°F)

      If the result is not as specified, replace the water inlet with thermostat sub-assembly.

   4. Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at low temperatures (below 77°C (171°F)).

      If it is not fully closed, replace the water inlet with thermostat sub-assembly.