When your furnace is operating properly, it should give warm air without making too much disruption. While it’s common to catch your furnace making noise as it begins running, other sounds are indicating your furnace needs immediate professional help.
Here are some of the most common furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Saint Louis, Missouri.
1. Furnace Making a Banging Noise
You may have an urgent issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be a couple of problems. These include gas increasing 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 critical to set seasonal furnace maintenance with Morgner Inc. Air Conditioning & Heating. One of the things our techs do during this service is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise if ignition is delayed. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warm air. Any breaks in it can emit carbon monoxide, which is ordinarily released outside. This toxic gas can be deadly in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Morgner Inc. Air Conditioning & Heating advises turning it off and contacting us at 314-262-4541. Excessive natural gas in your furnace or a broken heat exchanger are serious problems that necessitate prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide warm air around your home. If the ductwork wasn’t designed properly or is getting old, it can be loud when your furnace runs. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Morgner Inc. Air Conditioning & Heating at 314-262-4541 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 typically means there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to operate on the proper 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 uses a blower motor, which distributes hot or cold air throughout your residence, and a capacitor, which starts the motor. If either of these pieces are failing, they will buzz when the furnace starts.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be related to something small, like an unfastened screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 314-262-4541 for assistance.
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 alert you it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubricated. We realize that maintenance frequently slips your mind, but our professionals can get your furnace operating quietly again fast.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You might also notice whistling while the furnace is operating if a floor vent is loose. If you’ve checked your vents but are still noticing whistling, Morgner Inc. Air Conditioning & Heating can provide support. It’s essential to get loose ductwork repaired without delay, because it can create comfort issues in your home and drive up your energy bills.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s an issue with your furnace’s blower. Switch off your furnace off right away and call us at 314-262-4541 for help.
When you’re noticing a weird noise from your furnace, Morgner Inc. Air Conditioning & Heating is available to help. Contact us at 314-262-4541 to book your furnace repair appointment today.