When your furnace is working like it should, it should deliver warm air without making too much noise. While it’s expected to notice your furnace making noise as it starts up, other sounds are showing your furnace should get immediate professional help.
Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making an atypical noise, our friendly heating professionals are here to help with the best furnace repair in Des Moines, Iowa.
1. Furnace Making a Banging Noise
You might have a serious issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be several problems. These range from gas accumulating in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes grimy as time passes, so that’s why it’s essential to book seasonal furnace maintenance with Kohles & Bach Heating & Cooling. One of the tasks our technicians do during this appointment is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes more time. The subsequent gas buildup can crack your furnace’s heat exchanger, where natural gas turns into heat. Any cracks in it can leak carbon monoxide, which is regularly released outdoors. This dangerous gas can be deadly in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Kohles & Bach Heating & Cooling urges you to turn it off and calling us at 515-278-2900. Excessive natural gas in your furnace or a fractured heat exchanger are hazardous issues that require immediate attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide warm air across your residence. If the ductwork wasn’t designed right or is getting dated, it can be loud when your furnace is heating. This can be the issue if your furnace makes a banging noise when it shuts off. Call Kohles & Bach Heating & Cooling at 515-278-2900 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to work on the correct 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 works with a blower motor, which distributes hot or cooled air around your house, and a capacitor, which triggers the motor. If either of these components are fading, they will buzz when the furnace switches on.
3. Furnace Rattles
If your furnace is making a rattling noise, it may be due to something minor, like an unfastened screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and contacting our heating professionals at 515-278-2900 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to get your attention it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing could need to be greased. We are aware that maintenance frequently slips your mind, but our techs can get your furnace heating quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s frequently due to 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 examined your vents but are still sensing noise, Kohles & Bach Heating & Cooling can assist you. It’s important to get loose ductwork taken care of fast, because it can make comfort troubles in your home and drive up your energy bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise often means there’s trouble with your furnace’s blower. Switch off your furnace off immediately and call our pros at 515-278-2900 for help.
When you’re getting a strange noise from your furnace, Kohles & Bach Heating & Cooling is here to provide assistance. Contact us at 515-278-2900 to request your furnace repair appointment right away.