When your furnace is running like it should, it should give heat without generating too much sound. While it’s expected to notice your furnace making noise as it starts up, other disruptions are showing your furnace requires immediate professional help.

Here are some of the most common furnace noises and what they might mean. If your furnace is making an odd noise, our friendly heating specialists are here to assist with the best furnace repair in McPherson, Kansas.

1. Furnace Making a Banging Noise

You might have a critical 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 a couple of problems. These include gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s important to set annual furnace maintenance with McPherson Quality Air & Plumbing. One of the things our pros perform during this work is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise after ignition takes more time. The ensuing gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can emit carbon monoxide, which is ordinarily vented outdoors. This hazardous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, McPherson Quality Air & Plumbing recommends turning it off and contacting us at 620-209-5030. Excessive natural gas in your furnace or a ruptured heat exchanger are critical issues that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver heated air around your house. If the ductwork wasn’t put in correctly or is getting dated, it can be loud when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Contact McPherson Quality Air & Plumbing at 620-209-5030 and we’ll figure out 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 frequently 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 right voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or chilly air across your home, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something small, like a loose screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and contacting our heating professionals at 620-209-5030 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to alert you it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubricated. We are aware that maintenance often slips your mind, but our techs can get your furnace running quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You could also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve examined your vents but are still noticing sound, McPherson Quality Air & Plumbing can help. It’s important to get loose ductwork repaired without delay, since it can result in comfort problems in your home and increase your utility bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal noise often means there’s trouble with your furnace’s blower. Turn off your furnace off promptly and call our professionals at 620-209-5030 for support.

When you’re hearing an uncommon noise from your furnace, McPherson Quality Air & Plumbing is available to support you. Contact us at 620-209-5030 to request your furnace repair appointment today.