Why is my heating system so loud?

If your heating system is making unusually loud noises, it is crucial to pinpoint the origin of the noise to solve the issue.

Noise can indicate an underlying harsh concern that may end up damaging your heating system, multiple different components can cause loud noises, each producing a different one.

Furnace noises are a warning sign of an impending danger that you should not ignore, although you would not even if you wanted to. If your heating system produces a loud rattling or screeching noise when you turn on your heating system, the bearings in your blower motor or your blower motor itself could be the culprit. The blower motor pushes sizzling air out of your heating system & into your residing space through the ductwork, then your blower motor requires routine lubrication & usually a particular type of lubrication to upkeep optimal function & performance over time. Otherwise, your fan might seize up, causing a loud screeching or rattling noise. You may be having a loose or disfigured blower belt. If your heating system has a belt-driven motor, a squealing or similar noise may ensue when the belt loosens. Another reason for squealing noise can be attributed to shaft bearings & other moving components becoming dry… Lubricate the moving parts of your heating system respectfully during bi-annual tune-ups to keep your heating system in peak performance throughout winter. If you experience a loud clanking or scraping, described as metal against metal sound, it signals a harsh concern with your heating system’s blower wheel, then dirty burners that need cleaning may cause a loud bang or boom, while a faulty heat exchanger with a loose panel or screw may cause rattling noises.

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