There are certain situations when a furnace malfunction cannot be prevented, particularly if the unit is old or lacks proper maintenance. Here are some signs that can tell you if your unit needs to be inspected by a professional, or be replaced with a new, more efficient model:
  • Strange noises coming from the unit.
  • Suddenly shutting off or breaking down.
  • Higher utility bills than usual.
  • Gas problem indicated by yellow flame.
To learn more, check out an article from PetermanHvac.com — How Is Your Furnace Performing This Winter?
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