Banging, Screeching and Rattling: What 6 Ordinary Furnace Noises Indicate

October 13, 2020

When your furnace is operating properly, it should provide warm air without generating too much sound. While it’s expected to catch your furnace making noise as it turns on, other disruptions are showing your furnace requires immediate professional support.

Here are some of the most frequent furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Holdrege.

1. Furnace Making a Banging Noise

You could have an urgent problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a couple of problems. These include gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy as time passes, so that’s why it’s essential to set seasonal furnace maintenance with Durable Service . One of the jobs our pros do during this appointment is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The subsequent gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can leak carbon monoxide, which is regularly vented outside. This toxic gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Durable Service urges you to turn it off and calling us at 308-995-8177. Too much natural gas in your furnace or a broken heat exchanger are hazardous issues that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move hot air across your residence. If the ductwork wasn’t installed right or is getting old, it can be noisy when your furnace is heating. This may be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Durable Service at 308-995-8177 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound typically indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to run on the proper voltage. If wires or the box isn’t tight enough, you could hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air throughout your home, and a capacitor, which starts the motor. If either of these components 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 little, like an unfastened screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating specialists at 308-995-8177 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 tell you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be dilapidated or a bearing might need to be lubricated. We know that maintenance often slips your mind, but our technicians can get your furnace heating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing whistling, Durable Service can provide support. It’s essential to get loose ductwork repaired fast, since it can make comfort issues in your home and inflate your energy bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket often means there’s trouble with your furnace’s blower. Shut down your furnace off instantly and contact us at 308-995-8177 for support.

When you’re noticing an atypical noise from your furnace, Durable Service is available to support you. Contact us at 308-995-8177 to book your furnace repair appointment right away.