When your furnace is running correctly, it should provide warmth without creating too much sound. While it’s expected to hear your furnace making noise as it turns on, other sounds are showing your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating pros are here to assist with the best furnace repair in Payson, Arizona.

1. Furnace Making a Banging Noise

You might have a critical problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These include gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s critical to set yearly furnace maintenance with North Mechanical Heating and Cooling. One of the jobs our technicians perform during this service is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes more time. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into heat. Any cracks in it can leak carbon monoxide, which is normally emitted away from your home. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, North Mechanical Heating and Cooling recommends turning it off and reaching us at 928-263-8570. Excessive natural gas in your furnace or a ruptured heat exchanger are hazardous issues that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air across your home. If the ductwork wasn’t designed properly or is getting dated, it can make a lot of noise when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Call North Mechanical Heating and Cooling at 928-263-8570 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the correct voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes heated or chilly air throughout your residence, and a capacitor, which triggers the motor. If either of these components are fading, 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 the result of something small, like a loose screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and calling our heating pros at 928-263-8570 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to alert you it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubed. We realize that maintenance sometimes slips your mind, but our pros can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also hear whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still noticing whistling, North Mechanical Heating and Cooling can assist you. It’s critical to get loose ductwork taken care of fast, since it can create comfort troubles in your house and drive up your energy costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s a problem with your furnace’s blower. Shut down your furnace off now and call our pros at 928-263-8570 for help.

When you’re noticing an atypical noise from your furnace, North Mechanical Heating and Cooling is here to help. Contact us at 928-263-8570 to request your furnace repair appointment today.