Most furnace units make some noise while running. Once you’ve had your heater on for a couple of weeks, it’s likely you’ll become accustomed to the low hums and occasional pops, and they quickly turn into background noises that you hardly notice anymore. However, when heating systems age and parts begin to wear out, they often get louder and start making unusual sounds. Thus, it’s important to be aware of noises you’ve never heard before, as this can indicate the need for furnace repair. Here is what to listen for.

3 Common Furnace Noises 

1. Squealing 

A high-pitched squeal is not only unpleasant, but it can also signal a variety of issues with your heating equipment. It can mean the components in your unit aren’t properly lubricated, the belts have slipped or started to fray, or the fan motor is failing. Call an HVAC technician right away to make the appropriate furnace repair. If left unaddressed, any of these problems can cause long-term damage. 

2. Banging or Rattling 

Persistent banging or rattling typically occurs when parts inside the furnace have come loose or are broken. Allowing this to continue can result in significant damage to the unit, as loose parts will bang into other components and break them. Your HVAC professional will either need to tighten everything up or install replacement parts. 

3. Scraping

A loud scraping that sounds like metal against metal is often a clue something is wrong with the blower wheel. If you hear this, stop using your unit immediately and call a furnace repair specialist. They’ll determine if the blower fan has simply come loose or if it’s broken and must be replaced. Another possibility is that the motor mount could have broken, causing the blower assembly to drop and hit the housing.

If your furnace is making strange sounds, reach out to 1st Choice Mechanical to diagnose the problem. They’ll perform a thorough inspection of your heating equipment and recommend the most suitable and cost-effective solution for fixing it. For more than 30 years, they’ve remained dedicated to providing the residents in the Greater Denver area with high-quality furnace repairs that maximize efficiency and comfort. Call (720) 810-7279 or visit them online for more information about their services.