When your furnace is working like it should, it should deliver warmth without generating too much disruption. While it’s normal to notice your furnace making noise as it starts up, other sounds are indicating your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they could mean. If your furnace is making an odd noise, our friendly heating specialists are here to help with the best furnace repair in Huntsville, Alabama.

1. Furnace Making a Banging Noise

You could have a critical problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These involve gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over the years, so that’s why it’s critical to book routine furnace maintenance with All Weather Heating & Air Conditioning Inc. One of the tasks our technicians do during this service is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is normally released outdoors. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, All Weather Heating & Air Conditioning Inc recommends turning it off and reaching us at 256-801-4701. Significant natural gas in your furnace or a ruptured heat exchanger are critical troubles that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air around your residence. If the ductwork wasn’t designed properly or is aging, it can be noisy when your furnace is on. This may be the case if your furnace makes a banging noise when it shuts off. Contact All Weather Heating & Air Conditioning Inc at 256-801-4701 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 often indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air throughout your home, and a capacitor, which turns on the motor. If either of these pieces are going out, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something minor, like a loose screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 256-801-4701 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance recently, belts could be worn out or a bearing may need to be greased. We know that maintenance frequently slips your mind, but our technicians can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, All Weather Heating & Air Conditioning Inc can assist you. It’s important to get loose ductwork taken care of fast, because it can make comfort issues in your residence and increase your gas costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s a problem with your furnace’s blower. Turn off your furnace off promptly and call our professionals at 256-801-4701 for assistance.

When you’re hearing a weird noise from your furnace, All Weather Heating & Air Conditioning Inc is available to provide assistance. Contact us at 256-801-4701 to schedule your furnace repair appointment right away.