Six Warning Signs That Your Furnace May Be Failing

A warm and sound sleep might be the best thing about winters. However, do you often find yourself freezing in the middle of the night? Or do you wake up to a loud thud or humming sound even in the day? Before declaring it as something paranormal, you need to take a look at your furnace.

That’s right; a failing furnace can give out several noticeable signs that tell you you need to call a furnace replacement near me. Here are the six common warning signs your furnace might be failing.

6 Warning Signs of a Failing Furnace


  • Age of The Furnace

    Most furnaces are designed to last up to 15-20 years. In exceptional cases, it might work fine up to 25 years! However, once your furnace reaches 15 to 20 years of age, start paying extra attention to see if there’s any malfunction, strange sounds, and smells. 

    If you notice any of these signs, call a professional heating service in Diamond Springs right away.

  • Spiked-Up Utility Bills

    Although it’s pretty normal to see your energy bills go high in winters, unexpectedly high bills can be alarming. As the furnace operates continuously to keep your home warm, it takes a significant amount of energy. If your furnace isn’t as efficient enough as it used to be, it will use more energy. Eventually, it will cause a substantial rise in energy bills.

  • Yellow Pilot Flame

    A perfectly working furnace has a blue pilot flame. However, if you notice that the color has changed to yellow, it indicates poor combustion. The worst possibility is that your furnace could be leaking carbon monoxide, which is dangerous. 

    Therefore, if you see a yellow pilot light coupled with a rotten egg odor, turn off the furnace immediately and call a heating service in Diamond Springs.

  • Blowing Cold Air

    If your furnace is blowing cold air, there can be several reasons. For instance, a malfunctioning motor in the blower fan. If this is the case, your furnace won’t have enough power to blow warm air, causing cold spots throughout your home. However, if your furnace isn’t producing heat at all, a malfunctioning heat exchanger or pilot light might be the culprit. 

  • Dust Accumulation

    If you notice excessive dust on your home’s surfaces or a large amount of dust coming out of your ducts, your failing furnace is the reason! As your furnace gets older, it fails to filter the air properly. Although you can replace them every now and then, the filters alone can’t filter the air. 

  • Weird Noises

    HVAC systems can’t be totally silent. However, if you start hearing sounds like a thud, bang, grinding, or squealing noises from the furnace, it may indicate loose parts inside the unit. In most cases, you can get the loose part repaired or replaced.
    Has your furnace also given up on you? We are here to the rescue. Contact us for a professional furnace replacement near me. Give us a call now at (530) 919-0183.