When your furnace is operating correctly, it should deliver warmth without generating too much noise. While it’s normal to catch your furnace making noise as it turns on, other noises are showing your furnace needs immediate professional support.
Here are some of the most common 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 Elk River, Minnesota.
1. Furnace Makes Banging or Knocking Sounds
You might have an urgent problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a couple of problems. These involve gas accumulating in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns filthy over the years, so that’s why it’s important to book annual furnace maintenance with Home Comfort Heating & Air. One of the tasks our pros do during this appointment is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup may crack your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can emit carbon monoxide, which is regularly released away from your home. This dangerous gas can be deadly in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Home Comfort Heating & Air advises turning it off and reaching us at 763-276-0617. Too much natural gas in your furnace or a broken heat exchanger are hazardous problems that should get prompt repairs.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to move heated air throughout your residence. If the ductwork wasn’t installed correctly or is getting old, it can be noisy 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 Home Comfort Heating & Air at 763-276-0617 and we’ll figure out the problem.
2. Furnace Buzzes Constantly
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box is loose, you may detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cooled air around your rooms, and a capacitor, which turns on the motor. If either of these parts are fading, they will buzz when the furnace switches on.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be related to something minor, like a loose screw, or something major, like a broken component. In either case, we advise shutting your furnace off and calling our heating pros at 763-276-0617 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to alert you it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing may need to be greased. We realize that maintenance often slips your mind, but our technicians can get your furnace running quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You may also hear whistling while the furnace is running if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing noise, Home Comfort Heating & Air can assist you. It’s essential to get loose ductwork fixed without delay, because it can result in comfort problems in your home and drive up your gas bills.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal noise usually means there’s an issue with your furnace’s blower. Switch off your furnace off promptly and reach our pros at 763-276-0617 for assistance.
When you’re hearing a weird noise from your furnace, Home Comfort Heating & Air is available to support you. Contact us at 763-276-0617 to book your furnace repair appointment right away.
