When your furnace is operating like it should, it should give warm air without creating too much noise. While it’s expected to catch your furnace making noise as it starts up, other sounds are indicating your furnace needs immediate professional help.
Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a weird noise, our friendly heating professionals are here to help with the best furnace repair in Northglenn, Colorado.
1. Furnace Making a Banging Noise
You might have an urgent situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be a few problems. These range from gas building up in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes dirty over time, so that’s why it’s important to set routine furnace maintenance with Northglenn Heating & Air Conditioning. One of the jobs our technicians do during this work is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes more time. The ensuing gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warm air. Any cracks in it can leak carbon monoxide, which is regularly vented outdoors. This hazardous gas can be fatal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Northglenn Heating & Air Conditioning recommends turning it off and calling us at 303-452-4146. Too much natural gas in your furnace or a broken heat exchanger are hazardous troubles that should get fast service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver warm air throughout your residence. If the ductwork wasn’t put in properly or is aging, it can be noisy when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Northglenn Heating & Air Conditioning at 303-452-4146 and we’ll pinpoint the problem.
2. Furnace Makes a Buzzing Sound
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually means there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to operate on the proper voltage. If wires or the box isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes warm or chilly air around your residence, and a capacitor, which triggers the motor. If either of these pieces are going out, 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 the result of something minor, like an unfastened screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating pros at 303-452-4146 for assistance.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to get your attention it could use some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be lubed. We are aware that maintenance often slips your mind, but our pros can get your furnace running quietly again rapidly.
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 notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing sound, Northglenn Heating & Air Conditioning can help. It’s critical to get loose ductwork taken care of without delay, since it can make comfort problems in your home and increase your gas expenses.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal racket often means there’s a problem with your furnace’s blower. Turn off your furnace off promptly and call our professionals at 303-452-4146 for support.
When you’re getting a weird noise from your furnace, Northglenn Heating & Air Conditioning is ready to support you. Contact us at 303-452-4146 to schedule your furnace repair appointment now.