When your furnace is operating correctly, it should provide warmth without generating too much disruption. While it’s normal to notice your furnace making noise as it begins running, other disruptions are signaling your furnace requires immediate professional help.
Here are some of the most reported furnace noises and what they could be signaling. If your furnace is making an atypical noise, our friendly heating professionals are here to assist with the best furnace repair in Dresden, Ontario.
1. Furnace Making a Banging Noise
You could 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 a few problems. These include gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns dirty over time, so that’s why it’s important to schedule yearly furnace maintenance with McFadden Heating & Cooling. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup might break your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can emit carbon monoxide, which is regularly released outside. This hazardous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, McFadden Heating & Cooling recommends turning it off and contacting us at 1-866-781-0111. Excessive natural gas in your furnace or a cracked heat exchanger are serious problems that should get prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide heated air throughout your residence. If the ductwork wasn’t put in correctly or is getting dated, it can be loud when your furnace is on. This could be the issue if your furnace makes a banging noise when it shuts off. Call McFadden Heating & Cooling at 1-866-781-0111 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to work on the right voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cooled air around your residence, and a capacitor, which starts the motor. If either of these parts are failing, they will buzz when the furnace starts.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it may be due to something small, like an unfastened screw, or something serious, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 1-866-781-0111 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to alert you it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing might need to be lubed. We are aware that maintenance often slips your mind, but our techs can get your furnace heating quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still sensing whistling, McFadden Heating & Cooling can assist you. It’s essential to get loose ductwork taken care of fast, because it can create comfort problems in your residence and increase your heating bills.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise usually means there’s trouble with your furnace’s blower. Shut down your furnace off now and call our professionals at 1-866-781-0111 for help.
When you’re hearing an atypical noise from your furnace, McFadden Heating & Cooling is here to help. Contact us at 1-866-781-0111 to request your furnace repair appointment now.