When your furnace is running properly, 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 signaling your furnace needs immediate professional assistance.
Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making an atypical noise, our friendly heating pros are here to fix the problem with the best furnace repair in Rockford, Illinois.
1. Furnace Makes Banging or Knocking Sounds
You might have a critical problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be several problems. These range from gas increasing in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns filthy as time passes, so that’s why it’s important to schedule seasonal furnace maintenance with Temperature Doctors Heating & Cooling. One of the tasks our pros do during this service is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any fractures in it can discharge carbon monoxide, which is normally vented outside. This hazardous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Temperature Doctors Heating & Cooling urges you to turn it off and contacting us at (815) 914-6197. Significant natural gas in your furnace or a ruptured heat exchanger are hazardous issues that should get fast service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to provide hot air across your residence. If the ductwork wasn’t put in right or is getting old, it can be loud when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Temperature Doctors Heating & Cooling at (815) 914-6197 and we’ll figure out the problem.
2. Furnace Buzzes Constantly
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often means there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to operate on the right 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 has a blower motor, which sends hot or cooled air around 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 Rattles
If your furnace is making a rattling noise, it may be the result of something little, like an unsecure screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and calling our heating pros at (815) 914-6197 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 tell you it could use some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubed. We are aware that maintenance sometimes slips your mind, but our pros can get your furnace running quietly again fast.
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 might also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve checked your vents but are still noticing noise, Temperature Doctors Heating & Cooling can help. It’s important to get loose ductwork repaired quickly, as it can make comfort problems in your residence and increase your energy costs.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal noise frequently means there’s a problem with your furnace’s blower. Shut down your furnace off immediately and call our professionals at (815) 914-6197 for help.
When you’re getting an uncommon noise from your furnace, Temperature Doctors Heating & Cooling is here to support you. Contact us at (815) 914-6197 to request your furnace repair appointment today.