How to Identify Furnace Noises

Information may not be reliable

If you are hearing noises coming out of your furnace or ducts, you should not ignore the noises that you are hearing. The noises are a warning to you that something is the matter with your HVAC system and that you may be in need in some kind of HVAC repair. Different noises are going to mean different things. If you are ever not sure about the noise you are hearing, it is best to call a HVAC repair company such, as C&S A/C Services.

Locating the Noise

HVAC systems consist of the heating and AC units, blower, air ducts, return grills, vents and the air filter. All of these parts have the potential to make noises when something is wrong. It is not always easy to pinpoint exactly where the noise is coming from. Many times, you will have to investigate to find out exactly where the problem is.

Duct Noises

Some common duct noises may include:

·         Rattling noises, which are many times, the result of loose metal ducts knocking against each other.

·         Popping and banging noises are caused by movement of duct walls when temperature changes occur.

·         Booming sounds are common at the connection of the duct trunk and plenum.

·         Shaking or vibrating sounds are when the return side airflow is blocked from a clogged filter.

·         Scratching or buzzing sounds are from small pets or insects.

Furnace Noises

Some common furnace noises may include:

·         Rumbling noises may indicate a dirty or corroded heat exchanger.

·         Huffing and puffing sounds may occur when you have a faulty gas valve or burner.

·         Squealing noises may indicate a frayed belt, which may just mean the belt needs to be cleaned or serviced.

·         Grinding or scraping noises are usually serious. It may be that you have a failing blower motor.

·         Knocking sounds may mean that the vibration damper is not working correctly.

Fixing Problem Areas

Many duct issues may be performed by you but problems other than that may need to be fixed by a professional company such as C & S A/C Services. Before you do anything, you should always check the filter of the HVAC unit that is located inside your home and replace it if needed. If you hear rattling noises, it may be easy as sealing any loose ductwork connections that are visibly seen.

If the problem is easy, you should fix it but most times, a professional will need to be called. If you hear any grinding or scraping noises, you should immediately turn off the HVAC unit and call your HVAC professional. All furnace problems are a serious matter, especially since you are dealing with fuel combustion and potential carbon monoxide, which can kill you if not handled properly. You may just need a simple HVAC repair or thorough cleaning of the unit, but it is always best to have professionals handle the problem for you. It is always recommended to have your HVAC system looked at every year by a professional.