Heating valve cap how to take?
You have to rotate the hexagonal stem with the stem in the valve counterclockwise without pressure. It's on.
If there is no mark on it, there is a small hole on the side and loosen the screw in the small hole, and the valve cap can be taken down.
Hello Open the label on the top of the valve cap, you can see the screw inside, loosen the screw can be taken down.
