Why Is My Furnace Humming?

A furnace wouldn’t be a furnace if it didn’t make the strange noises that once frightened us in our early  years. Humming, hissing, and rattling are often the sounds of normal operation that our minds learn to tune out and ignore. If you’ve sought out this article, however, odds are that the rhythms you’re used to have been disrupted by a new, foreign sound. This usually indicates a problem has developed and that it’s time to bring in professional help.

The following are the likely causes of these new cries for help coming from your furnace:

Loose Components – Several components are fastened together to make up the inner-workings of your furnace. It’s possible that something has jarred loose and needs to be reaffixed.

Transformer – Electricity running in and out of your furnace’s transformer can make a distinct hum. A subtle yet noticeable change in the sound is often indicative of an impending part failure.

Motor Failure – A much louder and more dramatic humming noise is typical when the motor fails. This will need to be repaired or replaced by a professional immediately.

Ductwork – The sheet metal screws holding your ductwork together can wear over time and become dislodged. If the humming or rattling is clearly coming from the ductwork and not the furnace itself, then go ahead and tighten up the area of ductwork in question.

When you hear a new sound, it’s time to gather as much information as possible without touching anything on the furnace. What does it sound like? It is akin to any of the scenarios above? Wen is the sound coming from? Other than the obvious ductwork issue, this is not a do-it-yourself project. Call Owens immediately and we’ll take care of your furance humming sound efficiently and correctly.

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