When your furnace is running like it should, it should give warmth without generating too much noise. While it’s common to notice your furnace making noise as it starts up, other disruptions are indicating your furnace requires immediate professional help.

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

1. Furnace Making a Banging Noise

You may have a serious situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be a few problems. These range from gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s essential to set routine furnace maintenance with Age Heating & Cooling. One of the tasks our pros do during this service is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise after ignition takes more time. The subsequent gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can emit carbon monoxide, which is normally emitted away from your home. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Age Heating & Cooling advises turning it off and calling us at 208-603-2210. Significant natural gas in your furnace or a broken heat exchanger are dangerous troubles that should get fast service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide heated air across your residence. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is heating. This can be the problem if your furnace makes a banging noise when it shuts off. Call Age Heating & Cooling at 208-603-2210 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the correct 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 heated or cooled air across your space, and a capacitor, which starts the motor. If either of these pieces are failing, 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 may be due to something little, like an unfastened screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and contacting our heating specialists at 208-603-2210 for assistance.

4. Furnace Squeals

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

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also notice whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still noticing noise, Age Heating & Cooling can help. It’s important to get loose ductwork repaired fast, since it can result in comfort problems in your home and increase your utility expenses.

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 noise usually means there’s a problem with your furnace’s blower. Turn off your furnace off now and contact our professionals at 208-603-2210 for help.

When you’re hearing a strange noise from your furnace, Age Heating & Cooling is available to support you. Contact us at 208-603-2210 to schedule your furnace repair appointment right away.