When your furnace is running correctly, it should provide heat without making too much disruption. While it’s normal to hear your furnace making noise as it begins running, other disruptions are signaling your furnace requires immediate professional assistance.
Here are some of the most common furnace noises and what they might be signaling. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Des Moines, Iowa.
1. Furnace Making a Banging Noise
You could have a critical issue on your hands if you’re detecting 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 problem.
Banging Sounds Coming from Your Furnace
Your heating system becomes dirty over time, so that’s why it’s important to book seasonal furnace maintenance with Kohles & Bach Heating & Cooling. One of the tasks our pros do during this work is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The subsequent gas buildup can crack your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can emit carbon monoxide, which is ordinarily emitted away from your home. This toxic gas can be fatal 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. Significant natural gas in your furnace or a cracked heat exchanger are serious troubles that should get immediate attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide warm air around your residence. If the ductwork wasn’t designed right or is getting old, it can make a lot of noise when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Contact Kohles & Bach Heating & Cooling at 515-278-2900 and we’ll determine the problem.
2. Furnace Makes a Buzzing Sound
If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to work on the correct voltage. If wires or the box is loose, you might detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends hot or cold air across your residence, and a capacitor, which turns on the motor. If either of these components are failing, they will buzz when the furnace turns on.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be related to something minor, like a loose screw, or something major, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 515-278-2900 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to get your attention it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing could need to be lubricated. We are aware that maintenance sometimes slips your mind, but our techs can get your furnace running quietly again fast.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You might also hear whistling while the furnace is working if a floor vent is loose. If you’ve looked at your vents but are still sensing noise, Kohles & Bach Heating & Cooling can help. It’s important to get loose ductwork taken care of without delay, as it can create comfort problems in your residence and increase your heating 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 sound often means there’s an issue with your furnace’s blower. Switch off your furnace off right away and call us at 515-278-2900 for assistance.
When you’re noticing a weird noise from your furnace, Kohles & Bach Heating & Cooling is here to provide assistance. Contact us at 515-278-2900 to schedule your furnace repair appointment now.