'Lightly rub the rod to remove the carbon buildup. You don’t have to rub it roughly, just clean the soot off so it’s shiny ...
If your gas furnace keeps cycling on and then turning off within a minute or so, it might be the result of a dirty flame sensor. Most gas furnaces have a small sensor designed to shut off the furnace ...
The Family Handyman on MSN

Why Is My Furnace Blowing Cold Air?

Is your furnace blowing cold air? Here are some troubleshooting tips and simple DIY repairs for the most common causes for ...