When your furnace is operating correctly, it should give warm air without making too much sound. While it’s common to catch your furnace making noise as it begins running, other disruptions are signaling your furnace requires immediate professional support.
Here are some of the most common furnace noises and what they could mean. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Thedford, Ontario.
1. Furnace Making a Banging Noise
You might have a serious issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a few problems. These include gas increasing in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system turns dirty as time passes, so that’s why it’s essential to set annual furnace maintenance with Taylor's Heating & Air Conditioning. One of the tasks our techs do during this work is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent 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 toxic gas can be deadly in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Taylor's Heating & Air Conditioning recommends turning it off and calling us at 519-296-4437. Too much natural gas in your furnace or a broken heat exchanger are critical problems that should get prompt repairs.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide warm air around your home. If the ductwork wasn’t installed right or is getting dated, it can be loud when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Taylor's Heating & Air Conditioning at 519-296-4437 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually indicates an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to run 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 uses a blower motor, which sends warm or chilly air throughout your space, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace switches on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it could be the result of something small, like an unsecure screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating pros at 519-296-4437 for support.
4. Furnace Making a Squealing Noise
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 may need to be greased. We realize that maintenance sometimes slips your mind, but our professionals can get your furnace running quietly again rapidly.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also notice whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still noticing noise, Taylor's Heating & Air Conditioning can provide support. It’s essential to get loose ductwork taken care of without delay, because it can make comfort problems in your house and drive up your energy costs.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you detect 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 promptly and call our professionals at 519-296-4437 for support.
When you’re hearing an uncommon noise from your furnace, Taylor's Heating & Air Conditioning is here to help. Contact us at 519-296-4437 to request your furnace repair appointment right away.