WHAT YOU SHOULD KNOW ABOUT FURNACE NOISES

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We haven’t yet reached the stage in HVAC technology where we can install artificial intelligences into furnaces so they will self-diagnose and immediately alert homeowners to their repair needs. However, furnaces do have ways of alerting people about impending problems, although you need a bit of knowledge to understand what these signals mean.

One of the most common furnace alerts is noise. If you’ve lived with your furnace for at least one winter season, you will have a good idea what sort of sounds it makes during normal start-up and operation. If you notice a change in these sounds that you can’t account for, it’s a wise idea to seek the assistance of an HVAC professional: the sounds can indicate different problems, and it requires training to know what’s actually wrong and what will need repairs.

Here are a few common “uncommon” furnace noises, and what you need to know about them. For more assistance with your furnace in Humble, TX, contact a company with more than 40 years of experience: Expert Air.

  • Booming: This likely indicates dirt and grime across the burner where the gas jets ignite. If the burner becomes dirty, the gas jets will have trouble igniting, which will keep the furnace from supplying heat.
  • Loud clicking: You’ll usually hear clicking noises during start-up. This is normal. However, if the sound continues and the furnace doesn’t come on, it probably means there’s an issue with the igniter. (Many gas furnaces now use an electrical igniter in place of a pilot light.)
  • Rattling: There are a number of explanations for this. It could be as basic as loose bolts on the outside of the cabinet. But it could also come from the blower motors developing loose parts, which could lead to the motor burning out.
  • Clacking: The blower motor fan belt has likely come loose and has started to strike against other components. This will require fixing as soon as possible before it begins to damage the rest of the furnace interior. The clacking might also come from bent fan blades.

Don’t try opening your furnace’s cabinet to investigate the source of the noise on your own. Gas furnaces can present hazards from carbon monoxide and explosions if handled incorrectly, and electric furnaces are capable of delivering high voltage shocks. These are complex machines that need special training and tools to properly repair. Don’t hesitate, and don’t take on the job yourself: call right away for a furnace repair expert.

Because you need to act quickly, make sure you turn to a company with 24-hour emergency service. Expert Air can help you around the clock, every day of the year, with any trouble you have with your furnace in Humble, TX.

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