Have you found a red tag on your furnace recently? The tag means one thing: the unit is not safe to operate and you must resolve the problem as soon as possible — or you risk the health and safety of everyone in the home or building.
You depend on your furnace to keep your warm, so it can be very unsettling to hear strange furnace noises. Unusual furnace noises could indicate that a serious problem is developing, so consider calling an HVAC professional if you have concerns.
As the weather gets cooler, more and more people will begin to use their furnaces. Many times, however, they don’t realize there is a problem until it’s too late. By the time they turn their furnaces on for the first time it is already cold outside, and they need their furnaces to be in working…
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