Furnace is Blowing Cold Air – What Should I Do? – Heatmasters
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My Furnace is Blowing Cold Air – What Should I Do?

Published by Steven Weiland

Your furnace is a complicated system of parts that must work together in order to supply sufficient heat to your home. If one of these parts is not functioning properly, your furnace will not function properly either.

If you find that your furnace is blowing out cool air, check the following parts to find the source of the problem.

The fuel source. The fuel source is pretty self-explanatory, it supplies heat for the furnace. If there is no fuel, the furnace will blow cold air. The fuel source depends on the type of furnace you have: oil, gas or electric. Oil furnaces must have enough oil, gas furnaces need open valves, and electric furnaces must be in the “on” position.

The filters. We talk about replacing filters all the time, but for good reason. Clogged filters can be a huge cause for furnace inefficiency and will limit heat capacity, but they are easy to clean or replace.

The condensate. Pumps, outlets and reservoirs may be clogged with dirt and dust. If the condensate hose is plugged, a switch won’t allow burners to light, even though the fan blows cool air.

The ductwork. Aging ductwork can become broken or damaged, leading cold air to seep into the system. Your furnace may be sending heated air out, but by the time it gets into your home it may be only cold air.

If you find yourself with one or more issues with your furnace system, it is in your best interest to have them repaired right away. Contact Heatmasters; we can have a technician out to your home any time of day, any day of the week.

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