When your furnace is running like it should, it should provide warm air without making too much noise. While it’s common to catch your furnace making noise as it starts up, other noises are showing your furnace requires immediate professional support.
Here are some of the most reported furnace noises and what they could mean. If your furnace is making an odd noise, our friendly heating professionals are here to help with the best furnace repair in Bridgeport, Connecticut.
1. Furnace Makes a Banging Sound
You could have a serious problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These involve gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets filthy over time, so that’s why it’s critical to set routine furnace maintenance with Custom Air Systems. One of the jobs our pros do during this work is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The ensuing gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any breaks in it can emit carbon monoxide, which is normally emitted outside. This dangerous gas can be deadly in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Custom Air Systems urges you to turn it off and contacting us at (203) 333-1906. Significant natural gas in your furnace or a broken heat exchanger are hazardous problems that necessitate prompt repairs.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to move warm air throughout your residence. If the ductwork wasn’t installed correctly or is getting old, it can be loud when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Contact Custom Air Systems at (203) 333-1906 and we’ll pinpoint the problem.
2. Furnace Buzzes Constantly
If you observe your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound often means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes warm or cold air across your house, and a capacitor, which starts the motor. If either of these parts are fading, they will buzz when the furnace starts.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it could be related to something small, like a loose screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and calling our heating pros at (203) 333-1906 for assistance.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it requires some TLC. If you’ve neglected 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 techs can get your furnace heating quietly again rapidly.
5. Furnace Whistles
When you’re hearing your furnace making a whistling noise, it’s likely 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 examined your vents but are still noticing noise, Custom Air Systems can provide support. It’s critical to get loose ductwork taken care of fast, since it can result in comfort problems in your house and inflate your energy bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal racket often means there’s an issue with your furnace’s blower. Shut down your furnace off right away and call our professionals at (203) 333-1906 for support.
When you’re getting an atypical noise from your furnace, Custom Air Systems is here to provide assistance. Contact us at (203) 333-1906 to request your furnace repair appointment today.