When your furnace is operating like it should, it should give warm air without generating too much noise. While it’s common to notice your furnace making noise as it starts up, other noises are signaling your furnace needs immediate professional assistance.
Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making an odd noise, our friendly heating pros are here to help with the best furnace repair in Marshalltown, Iowa.
1. Furnace Makes Banging or Knocking Sounds
You might have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be several problems. These involve gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system becomes filthy over the years, so that’s why it’s essential to set yearly furnace maintenance with Kapaun & Brown. One of the things our techs do during this appointment is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise after ignition takes more time. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into heat. Any cracks in it can emit carbon monoxide, which is ordinarily released outside. This hazardous gas can be deadly in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Kapaun & Brown recommends turning it off and contacting us at 641-812-2028. Too much natural gas in your furnace or a ruptured heat exchanger are serious problems that necessitate fast service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move hot air around your residence. If the ductwork wasn’t put in correctly or is getting old, it can be noisy when your furnace is on. This can be the case if your furnace makes a banging noise when it shuts off. Call Kapaun & Brown at 641-812-2028 and we’ll determine the problem.
2. Furnace Buzzes Constantly
If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently indicates an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or cooled air throughout your house, 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 Making a Rattling Noise
If your furnace is making a rattling noise, it may be due to something little, like an unsecure screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and calling our heating specialists at 641-812-2028 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to get your attention 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 be aware of whistling while the furnace is working if a floor vent isn’t tight. If you’ve examined your vents but are still noticing noise, Kapaun & Brown can assist you. It’s essential to get loose ductwork fixed quickly, as it can make comfort troubles in your house and drive up your gas bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal noise often means there’s a problem with your furnace’s blower. Switch off your furnace off now and contact our professionals at 641-812-2028 for support.
When you’re hearing an uncommon noise from your furnace, Kapaun & Brown is here to support you. Contact us at 641-812-2028 to schedule your furnace repair appointment right away.