When your furnace is operating like it should, it should give warmth without creating too much noise. While it’s expected to hear your furnace making noise as it starts up, other noises are signaling your furnace should get immediate professional assistance.

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

1. Furnace Makes a Banging Sound

You may have a critical situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be several problems. These involve gas accumulating 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 essential to set annual furnace maintenance with Age Heating & Cooling. One of the things our pros do during this work is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise after ignition takes more time. The subsequent gas buildup can break your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can leak carbon monoxide, which is normally vented outdoors. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Age Heating & Cooling advises turning it off and reaching us at 208-603-2210. Significant natural gas in your furnace or a broken heat exchanger are dangerous problems that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air throughout your residence. If the ductwork wasn’t installed correctly or is getting dated, it can be loud when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Age Heating & Cooling at 208-603-2210 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to run on the right voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cooled air across your residence, and a capacitor, which turns on the motor. If either of these parts are failing, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be due to something minor, like an unfastened screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and calling our heating specialists at 208-603-2210 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to alert you it requires some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance often slips your mind, but our professionals can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s likely because 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 sound, Age Heating & Cooling can provide support. It’s critical to get loose ductwork fixed fast, because it can result in comfort problems in your home and inflate your utility bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound usually means there’s a problem with your furnace’s blower. Turn off your furnace off instantly and call our professionals at 208-603-2210 for support.

When you’re noticing an atypical noise from your furnace, Age Heating & Cooling is here to provide assistance. Contact us at 208-603-2210 to request your furnace repair appointment today.