When your furnace is working correctly, it should deliver heat without generating too much noise. While it’s normal to catch your furnace making noise as it turns on, other noises are indicating your furnace requires immediate professional assistance.

Here are some of the most frequent furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to assist with the best furnace repair in Pacheco, California.

1. Furnace Making a Banging Noise

You may have an urgent problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be a few problems. These range from gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty as time passes, so that’s why it’s essential to set routine furnace maintenance with Clean Air HVAC. One of the jobs our pros complete during this work is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can discharge carbon monoxide, which is normally released outdoors. This dangerous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Clean Air HVAC advises turning it off and reaching us at 925-233-6238. Significant natural gas in your furnace or a ruptured heat exchanger are dangerous problems that necessitate prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air throughout your residence. If the ductwork wasn’t put in right or is getting old, it can be noisy when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Contact Clean Air HVAC at 925-233-6238 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the proper voltage. If wires or the box is loose, you could hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or cooled air around your home, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be due to something minor, like an unsecure screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 925-233-6238 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to get your attention it requires some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubed. We realize that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again fast.

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 might also hear whistling while the furnace is working if a floor vent is loose. If you’ve checked your vents but are still sensing whistling, Clean Air HVAC can provide support. It’s essential to get loose ductwork taken care of quickly, as it can create comfort issues in your residence and increase your energy bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound typically means there’s a problem with your furnace’s blower. Shut down your furnace off instantly and contact our professionals at 925-233-6238 for help.

When you’re getting a strange noise from your furnace, Clean Air HVAC is available to provide assistance. Contact us at 925-233-6238 to schedule your furnace repair appointment now.