When your furnace is operating properly, it should deliver warm air without generating too much noise. While it’s common to hear your furnace making noise as it starts up, other noises are indicating your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they can be indicating. If your furnace is making an odd noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Tucson and Phoenix, Arizona.

1. Furnace Making a Banging Noise

You could 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 signal there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy as time passes, so that’s why it’s essential to schedule routine furnace maintenance with Desert Husky HVAC/R Services. One of the jobs our technicians complete during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise when ignition takes longer than normal. The following gas buildup can crack your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can emit carbon monoxide, which is normally vented away from your home. This toxic gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Desert Husky HVAC/R Services recommends turning it off and calling us at 520-416-5415. Too much natural gas in your furnace or a cracked heat exchanger are hazardous problems that necessitate fast service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air around your house. If the ductwork wasn’t put in right or is aging, it can be noisy when your furnace is on. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Desert Husky HVAC/R Services at 520-416-5415 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently indicates an electrical problem, 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 may notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes heated or chilly air around your home, and a capacitor, which starts the motor. If either of these pieces are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something minor, like an unsecure screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 520-416-5415 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to tell you it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubricated. We know that maintenance sometimes slips your mind, but our techs can get your furnace running quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve examined your vents but are still sensing noise, Desert Husky HVAC/R Services can provide support. It’s essential to get loose ductwork repaired fast, because it can make comfort problems in your residence and drive up your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket usually means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and reach our pros at 520-416-5415 for help.

When you’re hearing a weird noise from your furnace, Desert Husky HVAC/R Services is available to help. Contact us at 520-416-5415 to book your furnace repair appointment now.