Who knows what light on the train means the water is boiling?

The green light on the train means that the water is boiling. Just like the drinking machine at home, the red light means burning and the green light means boiling. If you really can't tell, you can ask the staff on the train.

Moreover, most of the boilers used on the train are boiling water boilers. You can work with pipes to let water out. If the water doesn't boil, the stove may be broken. It should be noted that the starting station sends electricity late, so it is necessary to empty the cold water in the boiling water cavity and let the hot water in the heating cavity come.

Extended data:

Matters needing attention for train water connection:

If you want to get hot water, it is usually at the junction of the carriages, and you can see a place where hot water is provided.

If you want hot water, you can press the green button, so that the outlet below will come out, and you can pick up the water with your own cup.

There will be an indicator light above the water heater. If the power indicator is on, you can connect the hot water normally. If the heating indicator lights up, it means that the water has not been heated. There is also a water shortage indicator light, which can be operated according to the indicator light.

It is best to drink half a cup of hot water directly when receiving hot water, because hot water is particularly painful, and it is easy to burn yourself or others if you feel too much.

You can see a cup on the right of the water heater. If you don't bring a quilt, you can use the disposable cups here.