When your furnace is running properly, it should provide warm air without creating too much disruption. While it’s normal to hear your furnace making noise as it begins running, other noises are showing your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they could be signaling. If your furnace is making an odd noise, our friendly heating pros are here to help with the best furnace repair in Port Orchard, Washington.

1. Furnace Makes a Banging Sound

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 might indicate there could be a couple of problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s important to book yearly furnace maintenance with Air Masters Heating & Cooling. One of the tasks our professionals complete during this appointment is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any fractures in it can emit carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Air Masters Heating & Cooling advises turning it off and contacting us at 360-205-7115. Significant natural gas in your furnace or a ruptured heat exchanger are serious problems that require immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air throughout your house. If the ductwork wasn’t installed right or is getting dated, it can be loud when your furnace is heating. This can be the issue if your furnace makes a banging noise when it shuts off. Contact Air Masters Heating & Cooling at 360-205-7115 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace depends on an internal transformer to run on the right voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes hot or cooled air throughout your rooms, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be related to something little, like a loose screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and calling our heating pros at 360-205-7115 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 get your attention it requires some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubed. We realize that maintenance often slips your mind, but our technicians can get your furnace heating quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You may also hear whistling while the furnace is running if a floor vent is loose. If you’ve looked at your vents but are still sensing whistling, Air Masters Heating & Cooling can assist you. It’s essential to get loose ductwork repaired quickly, since it can result in comfort troubles in your house and drive up your energy bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound usually means there’s an issue with your furnace’s blower. Switch off your furnace off instantly and reach us at 360-205-7115 for assistance.

When you’re hearing an uncommon noise from your furnace, Air Masters Heating & Cooling is available to provide assistance. Contact us at 360-205-7115 to schedule your furnace repair appointment now.