Making sense of your boiler wiring diagram
If you've ever had your heating go out in the middle of a freezing January night, you know that staring at a boiler wiring diagram is often the first step toward getting things back to normal. It looks like a mess of lines, circles, and weird abbreviations, but it's really just a map. If you can read a subway map or follow a recipe, you can eventually figure out what your boiler is trying to tell you. Most people open the service panel, see a "rat's nest" of colorful wires, and immediately want to close it back up. But honestly, once you break it down into smaller pieces, it's not nearly as intimidating as it looks. ...