3 Signs of an Aging Furnace

Posted By Tom's Mechanical, Inc. || 9-Oct-2013

Consider the following:

  1. Compared to an air conditioning unit, a gas furnace is really a pretty simple piece of equipment, with only a few significant components. The major consideration is the heat exchanger, for if the heat exchanger becomes cracked the furnace must be replaced. A cracked heat exchanger poses both a fire hazard and a carbon monoxide danger. Do not mess around with a cracked heat exchanger!
  2. A second component which requires periodic attention is the blower motor. If you hear odd noises coming from your furnace, chances are the blower motor has worn bearings and/or something is amiss with the blower assembly. In either case, a competent service technician can make repairs. Or, if the furnace is over 10 years old you may want to balance the cost of repairs against a furnace replacement.
  3. Finally, the burners in your furnace will occasionally become dirty and/or rusty. Routine maintenance will keep this from becoming a problem. Very dirty burners lead to uneven flames and must be cleaned.

How Can You Tell If Your Furnace Has a Cracked Heat Exchanger?

Since a damaged heat exchanger is such a danger, it's extremely important to be aware of what to watch out for:

  • Change in the appearance of the pilot light (it should burn blue and not orange or yellow)
  • The presence of soot on the furnace interior
  • A formaldehyde-like odor coming from the furnace
  • The onset of flu-like symptoms among those in your household

If you currently are experiencing any of these issues, please consult with a reputable heating and air conditioning company like Tom's Mechanical, Inc. as soon as possible. Tom's has been serving the Dallas Fort Worth area for more than 50 years. Contact us today!

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