Thermostat: Testing and Inspection

Thermostat Inspection
1. Visually check that the thermostat valve is airtight.
2. Place the thermostat and a thermometer in water
3. Heat the water gradually and check the following.
Initial-opening temperature: 83.5-89.5°C {188-193°F}
Full-open temperature: 100 °C {212 °F}
Full-open lift: 8.0 mm {0.31 in} min.