1. Press the power switch to turn on the machine. The LCD displays 20 as the set control temperature, 45 as the set boiler water temperature, 18 as the current control temperature, and 40 as the current boiler water temperature.

2. The rising arrow indicates heating, and the falling arrow indicates stopping heating.

3. Press the Set key to switch to the current temperature and set temperature of the displayed water temperature, and press the Exit key to enter the working state.