When your furnace is running correctly, it should deliver warmth without generating too much sound. While it’s expected to notice your furnace making noise as it begins running, other noises are indicating your furnace needs immediate professional help.

Here are some of the most common furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating professionals are here to help with the best furnace repair in Buellton, California.

1. Furnace Making a Banging Noise

You could have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a few problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over the years, so that’s why it’s essential to schedule routine furnace maintenance with Allstar Heating & Air Conditioning. One of the tasks our professionals perform during this service is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warm air. Any fractures in it can discharge carbon monoxide, which is normally released outdoors. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Allstar Heating & Air Conditioning recommends turning it off and reaching us at 805-242-9638. Excessive natural gas in your furnace or a broken heat exchanger are hazardous issues that should get immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air around your residence. If the ductwork wasn’t put in properly or is aging, it can make a lot of noise when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Allstar Heating & Air Conditioning at 805-242-9638 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace relies on an internal transformer to operate on the right voltage. If wires or the box isn’t tight enough, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cooled air around your rooms, and a capacitor, which starts the motor. If either of these parts 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 the result of something minor, like an unfastened screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating specialists at 805-242-9638 for assistance.

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 attempting to alert you it requires some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be greased. We realize 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 hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also notice whistling while the furnace is operating if a floor vent isn’t secure. If you’ve examined your vents but are still hearing noise, Allstar Heating & Air Conditioning can help. It’s essential to get loose ductwork taken care of quickly, because it can make comfort troubles in your residence and drive up your gas expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal racket frequently means there’s an issue with your furnace’s blower. Switch off your furnace off promptly and reach us at 805-242-9638 for support.

When you’re getting a strange noise from your furnace, Allstar Heating & Air Conditioning is ready to help. Contact us at 805-242-9638 to schedule your furnace repair appointment right away.