Thermostat: Testing and Inspection
THERMOSTAT INSPECTION [L3, AJ]1. Visually inspect that the thermostat valve is closed.
2. Place the thermostat and a thermometer in water.
Warning:
^ During inspection, the thermostat and water are extremely hot and can cause severe burns. Do not touch the thermostat and water directly.
3. Heat the water and inspect the following.
^ If not as specified, replace the thermostat.