After the power supply of the steam boiler is connected, it will give a prompt sound, all the indicator lights will be on, and it will be completely extinguished after 3 seconds. The power indicator flashes and enters the standby state. If there is no operation after 3 minutes, the power key goes out and enters the shutdown state. The display screen shows Beijing time. /kloc-No operation after 0/0 minutes, time closed.