When your furnace is working like it should, it should provide warmth without generating too much sound. While it’s normal to hear your furnace making noise as it turns on, other disruptions are showing your furnace requires immediate professional help.

Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to help with the best furnace repair in Phoenix, Arizona.

1. Furnace Makes a Banging Sound

You may have an urgent situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a few problems. These range from gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over the years, so that’s why it’s critical to book annual furnace maintenance with Dial One Mears Air Conditioning & Heating Inc. One of the jobs our techs perform during this appointment is clean your furnace’s burners. When this part gets grubby, you may hear your furnace making a loud rumbling noise if ignition takes more time. The subsequent gas buildup might break your furnace’s heat exchanger, where natural gas changes into heat. Any cracks in it can discharge carbon monoxide, which is regularly emitted away from your home. This dangerous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Dial One Mears Air Conditioning & Heating Inc advises turning it off and reaching us at 602-789-3315. Excessive natural gas in your furnace or a cracked heat exchanger are hazardous issues that necessitate immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air throughout your house. If the ductwork wasn’t installed properly or is getting old, it can be noisy when your furnace is heating. This can be the problem if your furnace makes a banging noise when it shuts off. Contact Dial One Mears Air Conditioning & Heating Inc at 602-789-3315 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the right voltage. If wires or the box isn’t tight enough, you could hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves hot or chilly air across your home, and a capacitor, which triggers the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be due to something minor, like an unsecure screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and calling our heating professionals at 602-789-3315 for help.

4. Furnace Squeals

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 forgotten furnace maintenance recently, belts could be worn out or a bearing could need to be lubricated. We realize that maintenance sometimes slips your mind, but our professionals can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still noticing whistling, Dial One Mears Air Conditioning & Heating Inc can provide support. It’s critical to get loose ductwork taken care of without delay, as it can make comfort issues in your residence and increase your utility expenses.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound frequently means there’s a problem with your furnace’s blower. Shut down your furnace off immediately and contact our professionals at 602-789-3315 for help.

When you’re hearing a weird noise from your furnace, Dial One Mears Air Conditioning & Heating Inc is ready to help. Contact us at 602-789-3315 to request your furnace repair appointment today.