When your furnace is running properly, it should deliver warm air without making too much disruption. While it’s common to catch your furnace making noise as it begins running, other disruptions are signaling your furnace requires immediate professional support.

Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making an atypical noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Cottonwood & Prescott, Arizona.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy as time passes, so that’s why it’s critical to set routine furnace maintenance with Connolly Electric & Mechanical. One of the things our techs complete during this work is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup might break your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can leak carbon monoxide, which is regularly released outdoors. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Connolly Electric & Mechanical advises turning it off and contacting us at 928-251-4327. Significant natural gas in your furnace or a ruptured heat exchanger are dangerous troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide heated air around your residence. If the ductwork wasn’t put in correctly or is getting dated, it can make a lot of noise when your furnace is on. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Connolly Electric & Mechanical at 928-251-4327 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to work on the right voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves hot or chilly air around your rooms, and a capacitor, which starts the motor. If either of these parts 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 could be related to something minor, like an unsecure screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 928-251-4327 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 making an effort to alert you it needs some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubricated. We know that maintenance often slips your mind, but our techs can get your furnace operating quietly again rapidly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still sensing sound, Connolly Electric & Mechanical can assist you. It’s important to get loose ductwork taken care of fast, since it can create comfort issues in your house and increase your heating costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal noise frequently means there’s an issue with your furnace’s blower. Switch off your furnace off immediately and contact our pros at 928-251-4327 for support.

When you’re getting an uncommon noise from your furnace, Connolly Electric & Mechanical is available to provide assistance. Contact us at 928-251-4327 to schedule your furnace repair appointment now.