Noises That No Heater Should Make

Having a heater in your home is a great advantage. It allows you to stay warm on some of the coldest of days, and to do so without having to spend an aggressive amount of money. At least, that is how things are meant to work.

If you have a system that needs heater repair in Portland though, you may find your reality is a bit different. You might have some days with comfort and some without. Or you may struggle to get any kind of warmth at all.

Rather than battle with your heater, you can reach out to get expert repairs, especially if you hear these sounds.


We’ll start here because hissing can have several causes, none of which are good.

In a heat pump or furnace, hissing could be an indicator that you have a leak in the ductwork that is allowing warm air to escape before it can reach its intended destination. This will leave you uncomfortable and lead to higher energy bills.

In a gas furnace, you should pay close attention to any hissing noise. This is because hissing, especially if it occurs alongside any kind of gas smell, can indicate that there is a crack in your heat exchanger allowing gas to leak into your home. This is dangerous and unhealthy, and it also undermines your comfort.


Another concerning noise that a heater might make is a boom. In some cases, your ductwork may boom if it expands and contracts while air passes through it—though aggressive booming may be a sign of an oversized heater. In another case, your gas furnace may boom due to a delay in the ignition of its fuel.


Your heater may create a rattling noise while it is in operation. This is often due to a loose part that is vibrating in its housing, such as a screw or bolt. It is best to address this noise quickly to prevent it from escalating as the loose part can come free and cause far more damage to the system until it is found.


Lastly, we want to bring your attention to any screeching noises your heater might make. This can indicate your heater has a fan blade that’s loose or crooked and has started to scrape around the metal walls of its housing. It can also be a sign that you have a blower motor belt that is dry and needs lubrication.

Whatever sound your heater might be making and whatever type of heater you use, our team is going to be able to help you out. We’re locals and we understand how important it is to get your heater up and running again. For effective and honest customer service, reach out to The Clean Air Act.

Please call Sydni, our Office Extraordinaire, to schedule your next appointment! We will take care of you from there! The Clean Air Act is proud to have served residents like you for more than 20 years.

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