HVAC Failure: Smells and Sounds to Watch out for

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HVAC failure is not only annoying because you lose your climate-controlled environment but it can also be costly to fix or replace the system. It’s a good idea to know the warning signs so you don’t lose money by not getting the repairs done.

Grinding Sound

A grinding sound is never good when it comes to your HVAC system. If you hear a grinding noise when it starts, when it’s running or when you turn it off, it might be time to check with a professional.

Humming or Buzzing When the System Turns On

Many people think a humming or buzzing noise is normal when their air conditioner is running. The professionals at Master Service Heating, Air Conditioning & Refrigeration see this a lot, but it’s actually not a noise that’s supposed to happen. If you have humming or buzzing in your system, you might have a problem.

Hot Smell When Your Heat Is On

If it smells hot when you turn your heat on, you could have a problem Your heating system should not smell hot when you turn it on. If it has a hot smell to it, then it could be burning up energy and could be causing problems for your system. It could also make it harder for your system to work which could cost you money.

Popping or Hissing Coming from Your Vents

It might be time to upgrade your HVAC if you hear a popping or hissing sound coming from your system. The HVAC system shouldn’t really make much noise while it’s running even if your air conditioner is working hard to cool off your home.

Gear Noise When You Turn the Air Off

Once you turn the air off, all noises should stop. If there’s something in the air conditioner making a noise like a gear going, you might need to replace your system. The gear noise is usually just the system doing what it needs to power down, but it can indicate a problem if it’s not something that normally happens.

 

When you know what to look for, you can better prepare to make sure your system is working the way it should. It’s always a great idea to check and make sure you don’t have any leaks or other problems with your HVAC system when you hear one of these noises or smell something off with your heating and cooling system.

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