Clanging, Hissing and Rattling: What Six Common Furnace Sounds Mean

When your furnace is working like it should, it should give warmth without creating too much sound. While it’s common to catch your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.

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

1. Furnace Making a Banging Noise

You may 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 mean there could be several problems. These involve gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s important to book seasonal furnace maintenance with Bishop Heating & Air Conditioning. One of the jobs our pros do during this service is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup might break your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can leak carbon monoxide, which is ordinarily vented away from your home. This hazardous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Bishop Heating & Air Conditioning urges you to turn it off and reaching us at 760-784-9034. Too much natural gas in your furnace or a broken heat exchanger are dangerous issues that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air throughout your house. If the ductwork wasn’t put in correctly or is aging, it can be loud when your furnace is heating. This could be the issue if your furnace makes a banging noise when it shuts off. Call Bishop Heating & Air Conditioning at 760-784-9034 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.

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

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something little, like a loose screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 760-784-9034 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to alert you it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing might need to be greased. We know that maintenance frequently slips your mind, but our professionals can get your furnace heating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You could also notice whistling while the furnace is running if a floor vent is loose. If you’ve examined your vents but are still noticing whistling, Bishop Heating & Air Conditioning can provide support. It’s essential to get loose ductwork repaired fast, since it can result in comfort issues in your house and drive up your gas bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal noise frequently means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and contact us at 760-784-9034 for assistance.

When you’re noticing a strange noise from your furnace, Bishop Heating & Air Conditioning is here to help. Contact us at 760-784-9034 to request your furnace repair appointment right away.