When your furnace is running correctly, it should give warmth without creating too much disruption. While it’s expected to notice your furnace making noise as it begins running, other noises are indicating your furnace should get immediate professional support.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Payson, Arizona.

1. Furnace Making a Banging Noise

You may have a critical 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 couple of problems. These involve gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over time, so that’s why it’s critical to schedule yearly furnace maintenance with North Mechanical Heating and Cooling. One of the things our technicians do during this appointment is clean your furnace’s burners. When this part gets dirty, you could hear your furnace making a loud rumbling noise if ignition is delayed. The resulting gas buildup can break your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can leak carbon monoxide, which is ordinarily released outside. This toxic gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, North Mechanical Heating and Cooling advises turning it off and reaching us at 928-263-8570. Excessive natural gas in your furnace or a fractured heat exchanger are critical problems that necessitate immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver hot air around your house. If the ductwork wasn’t put in properly or is getting dated, it can make a lot of noise when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Get in touch with North Mechanical Heating and Cooling at 928-263-8570 and we’ll determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves hot or cold air around your house, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be the result of something little, like a loose screw, or something serious, like a broken part. In either case, we urge you to shut your furnace off and calling our heating professionals at 928-263-8570 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to tell you it needs some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn out or a bearing could need to be lubricated. We are aware that maintenance often slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also notice whistling while the furnace is operating if a floor vent is loose. If you’ve looked at your vents but are still sensing sound, North Mechanical Heating and Cooling can assist you. It’s essential to get loose ductwork taken care of without delay, as it can result in comfort problems in your home and inflate your utility expenses.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s trouble with your furnace’s blower. Turn off your furnace off now and call our professionals at 928-263-8570 for assistance.

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