I just moved into a flat that has a combi boiler installed in the bedroom closet. It's an Ariston. Next to the boiler is a small white box, unmarked, with two LEDs. The one on the right is always red/orange. When the one on the left is green, the central heating system will work. When it is turned off (no colour), the central heating system turns itself off. Can someone tell me what this means?
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!