When your furnace is running properly, it should deliver heat without generating too much noise. While it’s common to notice your furnace making noise as it begins running, other disruptions are signaling your furnace needs immediate professional assistance.
Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an atypical noise, our friendly heating pros are here to help with the best furnace repair in Marshfield, Wisconsin.
1. Furnace Makes a Banging Sound
You might have a critical situation 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 few problems. These involve gas increasing 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 essential to schedule yearly furnace maintenance with House of Heating Incorporated. One of the tasks our techs do during this work is clean your furnace’s burners. When this component gets grimy, you could hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can leak carbon monoxide, which is normally emitted away from your home. This toxic gas can be fatal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, House of Heating Incorporated recommends turning it off and contacting us at 715-384-3163. Excessive natural gas in your furnace or a ruptured heat exchanger are hazardous issues that should get fast attention.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move warm air throughout your house. If the ductwork wasn’t designed properly or is getting old, it can be loud when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with House of Heating Incorporated at 715-384-3163 and we’ll pinpoint the problem.
2. Furnace Buzzes Constantly
If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically means there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to run on the proper voltage. If wires or the box is loose, you might hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes hot or cold air throughout your rooms, and a capacitor, which triggers 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 can be the result of something little, like an unfastened screw, or something serious, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 715-384-3163 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to get your attention it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing may need to be lubricated. We are aware that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You could also be aware of whistling while the furnace is working if a floor vent isn’t secure. If you’ve examined your vents but are still noticing whistling, House of Heating Incorporated can help. It’s important to get loose ductwork fixed quickly, since it can result in comfort issues in your home and increase your gas costs.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s a problem with your furnace’s blower. Switch off your furnace off now and contact us at 715-384-3163 for help.
When you’re hearing an uncommon noise from your furnace, House of Heating Incorporated is available to support you. Contact us at 715-384-3163 to book your furnace repair appointment now.