When your furnace is operating like it should, it should deliver heat without generating too much noise. While it’s expected to hear your furnace making noise as it begins running, other sounds are showing your furnace requires immediate professional support.
Here are some of the most common furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Port St. Lucie, Florida.
1. Furnace Makes Banging or Knocking Sounds
You could have a critical issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These include gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system becomes filthy as time passes, so that’s why it’s important to set yearly furnace maintenance with True Temp. One of the things our techs do during this service is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any breaks in it can discharge carbon monoxide, which is regularly emitted away from your home. This dangerous gas can be lethal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, True Temp urges you to turn it off and calling us at 772-202-2963. Excessive natural gas in your furnace or a cracked heat exchanger are hazardous problems that require immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to move hot air around your house. If the ductwork wasn’t put in right or is getting old, it can make a lot of noise when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Get in touch with True Temp at 772-202-2963 and we’ll pinpoint the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually is telling you there’s an electrical issue, 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 could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes heated or chilly air throughout your residence, and a capacitor, which starts the motor. If either of these components are going out, they will buzz when the furnace switches on.
3. Furnace Rattles
If your furnace is making a rattling noise, it could be related to something small, like a loose screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and calling our heating pros at 772-202-2963 for assistance.
4. Furnace Squeals
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to get your attention it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubed. We know that maintenance sometimes slips your mind, but our pros can get your furnace heating quietly again fast.
5. Furnace Whistles
When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve examined your vents but are still noticing whistling, True Temp can help. It’s important to get loose ductwork repaired without delay, as it can result in comfort troubles in your home and drive up your heating expenses.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise frequently means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and call our pros at 772-202-2963 for assistance.
When you’re hearing a strange noise from your furnace, True Temp is ready to support you. Contact us at 772-202-2963 to request your furnace repair appointment today.