THERMOSTAT INSPECTION

PROCEDURE


  1. INSPECT THERMOSTAT

    Tech Tips

    A01X0REE01

    The valve opening temperature is inscribed on the thermostat.


    1. A01X308

      Immerse the thermostat in water and then gradually heat the water.

    2. Check the valve opening temperature.

      Valve opening temperature
      74 to 78°C (165 to 172°F)

      • If the valve opening temperature is not within the specified range, replace the thermostat.

    3. A01XBG9E01
      *1 Valve Lift

      Check the valve lift.

      Valve lift
      10 mm (0.394 in.) or more at 90°C (194°F)

      • If the valve lift is not as specified, replace the thermostat.

    4. Check that the valve is fully closed when the thermostat is at low temperatures (below 40°C (104°F)).


      • If not fully closed, replace the thermostat.