In the confines of your home or office, the last thing you need is a distraction, and unusual furnace sounds are just that. There is no way you can ignore them or sit with a finger in your ears to make them disappear. The only way to deal with them is to find out the cause and take care of it. That, my dear friends, is the only way to allow peace into your territory once again.
Are All Sounds Unusual?
The modern-day heating and cooling systems are built to provide noise-free operations. It, however, does not mean that they make zero sound. It just means that they are not loud and disrupting. Now let’s talk about older heating systems. They are, in comparison, loud, and wear and tear have added to the problem. So some noises are now part and parcel of the old unit. In a nutshell, before declaring unusual furnace sounds as a problem, let a trained technician look at it and give you an honest assessment.
Unusual Furnace Sounds And What They Mean
Now let’s talk about the sounds that you are most likely to hear from the furnace. Every sound has an origin, and if we can identify that correctly, the solution will be relatively straightforward.
1. Screeching And Scraping – The screeching and scraping noise can best be described as the sound produced when two moving portions rub against each other. Typically, the motion should be smooth, but often, due to wear and tear, the lubrication disappears, due to which the parts now make an unholy noise. A basic fact is that if you keep up with the furnace’s maintenance, there is no reason for such a racket to crop up as an essential task covered during a tune-up is oiling and greasing of moving parts.
2. Banging And Clanking – Lose or broken parts tend to displace from their position. If they come in the path of some moving component, you will hear a sharp sound every time the two collide. This sound closely resembles the sound of banging or clanking. Important here is to figure out which part of the furnace is producing the sound. It will help narrow down the issue. An HVAC technician is the best person to identify the source of the noise and remedy the fault.
3. Wheezing And Whooshing – No, the furnace does not have asthma. Nevertheless, the wheezing and whooshing sound originates from the very fact that the system cannot move adequate amounts of air. For the system to work optimally, the airflow should be free of all restrictions. Over a period of time, the air filters become dirty. Continued use only escalates the problem until a time when it becomes difficult for the air to pass through the grates – the air filter’s resistance in the path of moving air results in the asthmatic sound.
4. Booming And Popping – There is no band playing inside the furnace, so don’t think of it as a musical cacophony. When the burner of the furnace is dirty and clogged with dirt and dust, it leads to the build-up of gas. When the flame finally ignites, it results in a booming or popping sound. Keeping the furnace burner clean will prevent the sound from recurring. Thankfully, it takes a long time for the burner to become that dirty. Hence, if you see to the furnace’s annual maintenance, half your headache will be over.
5. Whining And Squealing – The whining and squealing sound are loud and shrill, making it a real pain. Nonetheless, it too is indicative of a furnace problem. Usually, this type of sound means that there is a problem with the belt of the blower. There could be three things that could be wrong. First, the blower belt has gone through tremendous wear and tear, resulting in its damage. Two, it has become loose and so misaligned, and thirdly, it is in dire need of some lubrication. All of these issues can easily be identified by an HVAC technician during the unit’s routine check-up.
6. Pinging And Crackling – The pinging sound is produced when the ductwork expands and contracts due to the temperature changes. It is normal for you to hear the sound, and it just means that your ductwork is doing its work admirably. The crackling sound, too, is normal. This sound is produced when the furnace shuts down and the ductwork cools. Essentially speaking, both sounds are heard due to the changes brought about by the alteration of temperature in the ductwork.
What To Do When You Hear Unusual Furnace Sounds
When you hear any unusual furnace sounds, the first thing to do is try and figure out where it is coming from. The above description of the various noise possibilities will give you an idea of the source. If it is nothing to be worried about and just a regular noise, you can go about your daily business as usual. Nevertheless, if you’ve never heard the sound before, it would be best to call your local HVAC contractor for their advice. For all the other commotion produced by the furnace, switch it off first and then immediately call the technician for help.
Annual Maintenance The Key To Keeping Strange Furnace Sounds At Bay
If you wish to keep the silence in your home intact, annual furnace maintenance is the key. During the maintenance, the technician will give the system a thorough cleaning, all moving parts will be lubricated, and lose components tightened. These activities will prevent the occurrence of most sounds.
Aztil For All Furnace Problems
If you have not yet scheduled an appointment for the maintenance of your furnace, do it now. We at Aztil Air Conditioning are experts in handling all things HVAC, and that includes your furnace. In business since 1981, we have made a name for ourselves in South Florida due to our integrity and quality of work. Our technicians are an elite force of certified and experienced professionals who continually aim to satisfy the clients with their world-class service. Our collection of services ranges from repairs and maintenance to installations and replacements of heating and cooling systems. When you face an HVAC issue, call us any time at +1-888-729-8452. We are open 24/7, so any time is a good time to call.