Thermostat: Testing and Inspection

1UR-FSE COOLING: THERMOSTAT: INSPECTION

1. INSPECT WATER INLET SUB-ASSEMBLY WITH THERMOSTAT





HINT
The water inlet with thermostat is stamped with the valve opening temperature.





(a) Immerse the water inlet with thermostat in water and gradually heat the water.

(b) Check the valve opening temperature.

Standard valve opening temperature:

80 to 84°C (176 to 183°F)

If the valve opening temperature is not within the specified range, replace the water inlet with thermostat.





(c) Check the valve lift.

Standard valve lift:

10.0 mm (0.394 in.) or more at 95°C (203°F)

If the valve lift is not as specified, replace the water inlet with thermostat.

(d) Check that the valve is fully closed when the water inlet with thermostat is at a low temperature (below 77°C (171°F)).

If it is not closed, replace the water inlet with thermostat.