When your furnace is working like it should, it should deliver heat without generating too much disruption. While it’s expected to catch your furnace making noise as it starts up, other sounds are signaling your furnace should get immediate professional support.
Here are some of the most reported furnace noises and what they could mean. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Alice, Texas.
1. Furnace Makes a Banging Sound
You may have an urgent problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes grimy over time, so that’s why it’s essential to schedule annual furnace maintenance with Rescue Heating & Air. One of the jobs our techs perform during this work is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup can crack your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can leak carbon monoxide, which is normally vented outside. This dangerous gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Rescue Heating & Air urges you to turn it off and contacting us at 361-265-4371. Too much natural gas in your furnace or a ruptured heat exchanger are critical troubles that require prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide warm air across your house. If the ductwork wasn’t designed right or is getting old, it can be loud when your furnace runs. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Rescue Heating & Air at 361-265-4371 and we’ll determine the problem.
2. Furnace Buzzes Constantly
If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound typically means there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to operate on the correct voltage. If wires or the box isn’t tight enough, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes warm or chilly air around your home, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace switches on.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it could be related to something minor, like a loose screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and calling our heating professionals at 361-265-4371 for assistance.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to alert you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing could need to be greased. We realize that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again fast.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent isn’t tight. If you’ve checked your vents but are still sensing sound, Rescue Heating & Air can provide support. It’s essential to get loose ductwork repaired fast, since it can make comfort problems in your residence and inflate your utility 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 sound typically means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and reach our pros at 361-265-4371 for assistance.
When you’re hearing an uncommon noise from your furnace, Rescue Heating & Air is here to support you. Contact us at 361-265-4371 to request your furnace repair appointment right away.