When your furnace is running correctly, it should deliver warm air without creating too much noise. While it’s common to hear your furnace making noise as it starts up, other sounds are signaling your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Chelan and Wenatchee, Washington.

1. Furnace Makes a Banging Sound

You may have a serious situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a few problems. These include gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over time, so that’s why it’s critical to schedule yearly furnace maintenance with Lakeside Heating & Air. One of the tasks our pros complete during this service is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes more time. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can emit carbon monoxide, which is regularly released outdoors. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Lakeside Heating & Air advises turning it off and contacting us at 509-284-4265. Excessive natural gas in your furnace or a cracked heat exchanger are critical troubles that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air around your home. If the ductwork wasn’t installed properly or is aging, it can make a lot of noise when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Lakeside Heating & Air at 509-284-4265 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or cooled air around your rooms, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be due to something little, like a loose screw, or something major, like a broken part. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 509-284-4265 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing could need to be greased. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You might also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing noise, Lakeside Heating & Air can assist you. It’s critical to get loose ductwork repaired without delay, since it can result in comfort issues in your home and inflate your heating costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s trouble with your furnace’s blower. Shut down your furnace off now and reach us at 509-284-4265 for assistance.

When you’re getting a strange noise from your furnace, Lakeside Heating & Air is available to provide assistance. Contact us at 509-284-4265 to request your furnace repair appointment right away.