When your furnace is working like it should, it should give heat without creating too much disruption. While it’s normal to catch your furnace making noise as it begins running, other noises are signaling your furnace requires immediate professional assistance.
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 Fredericksburg, Virginia.
1. Furnace Makes a Banging Sound
You could have an urgent problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few problems. These range from gas increasing in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system turns grimy over the years, so that’s why it’s critical to schedule annual furnace maintenance with Childress Heating & AC. One of the tasks our techs do during this work is clean your furnace’s burners. When this component gets grubby, you could hear your furnace making a loud rumbling noise if ignition takes more time. The following gas buildup might break your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can discharge carbon monoxide, which is normally emitted away from your home. This dangerous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Childress Heating & AC advises turning it off and contacting us at 540-675-4306. Significant natural gas in your furnace or a fractured heat exchanger are critical problems that necessitate prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move warm air throughout your home. If the ductwork wasn’t put in correctly or is getting old, it can make a lot of noise when your furnace is heating. This could be the issue if your furnace makes a banging noise when it shuts off. Call Childress Heating & AC at 540-675-4306 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to operate on the correct voltage. If wires or the box is loose, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or cold air around your house, and a capacitor, which triggers 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 may be due to something minor, like an unfastened screw, or something serious, like a broken component. In either case, we urge you to shut your furnace off and calling our heating pros at 540-675-4306 for help.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to alert you it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubricated. We are aware that maintenance frequently slips your mind, but our pros can get your furnace running quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re detecting your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may 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, Childress Heating & AC can provide support. It’s critical to get loose ductwork taken care of quickly, because it can make comfort troubles in your home and drive up your gas expenses.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket typically means there’s trouble with your furnace’s blower. Switch off your furnace off right away and contact us at 540-675-4306 for assistance.
When you’re noticing an atypical noise from your furnace, Childress Heating & AC is available to provide assistance. Contact us at 540-675-4306 to schedule your furnace repair appointment now.