When your furnace is working correctly, it should give warmth without creating too much sound. While it’s normal to notice your furnace making noise as it begins running, other noises are indicating your furnace should get immediate professional help.
Here are some of the most common furnace noises and what they can mean. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in Sacramento, California.
1. Furnace Makes a Banging Sound
You might have an urgent situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a couple of problems. These include gas increasing in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system gets grimy as time passes, so that’s why it’s critical to schedule routine furnace maintenance with Bishop’s HVAC. One of the jobs our professionals perform during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The resulting gas buildup may break your furnace’s heat exchanger, where natural gas turns into warm air. Any fractures in it can leak carbon monoxide, which is normally emitted outside. This hazardous gas can be fatal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Bishop’s HVAC recommends turning it off and reaching us at 916-591-6889. Significant natural gas in your furnace or a fractured heat exchanger are dangerous issues that require prompt repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move heated air across your home. If the ductwork wasn’t designed properly or is getting dated, 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. Get in touch with Bishop’s HVAC at 916-591-6889 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to operate on the correct voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or chilly air throughout your space, and a capacitor, which starts the motor. If either of these pieces are failing, 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 an unsecure screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating professionals at 916-591-6889 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to alert you it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing could need to be greased. We know that maintenance often slips your mind, but our pros can get your furnace operating quietly again rapidly.
5. Furnace Whistles
When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve checked your vents but are still hearing noise, Bishop’s HVAC can provide support. It’s critical to get loose ductwork fixed quickly, since it can create comfort troubles in your residence and increase your energy costs.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound frequently means there’s trouble with your furnace’s blower. Shut down your furnace off instantly and contact our professionals at 916-591-6889 for assistance.
When you’re noticing an atypical noise from your furnace, Bishop’s HVAC is ready to support you. Contact us at 916-591-6889 to book your furnace repair appointment right away.