When your furnace is running like it should, it should deliver warmth without generating too much sound. While it’s common to hear your furnace making noise as it starts up, other sounds are indicating your furnace needs immediate professional support.

Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to help with the best furnace repair in Hodgenville, Kentucky.

1. Furnace Making a Banging Noise

You could have an urgent issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may signal 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 gets filthy as time passes, so that’s why it’s critical to set yearly furnace maintenance with Phelps Heating & Cooling, Inc.. One of the jobs our techs do during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise if ignition takes more time. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can discharge carbon monoxide, which is regularly emitted outside. This hazardous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Phelps Heating & Cooling, Inc. advises turning it off and calling us at 270-358-3167. Too much natural gas in your furnace or a fractured heat exchanger are critical problems that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air throughout your home. If the ductwork wasn’t put in properly or is aging, it can make a lot of noise when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Phelps Heating & Cooling, Inc. at 270-358-3167 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 usually is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work on the proper voltage. If wires or the box needs to be tightened, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes hot or cold air around your rooms, and a capacitor, which triggers the motor. If either of these components are going out, 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 minor, like a loose screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating pros at 270-358-3167 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to alert you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubed. We are aware that maintenance frequently slips your mind, but our pros can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also notice whistling while the furnace is running if a floor vent is loose. If you’ve looked at your vents but are still noticing whistling, Phelps Heating & Cooling, Inc. can help. It’s important to get loose ductwork fixed fast, because it can create comfort issues in your residence and inflate your heating bills.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s a problem with your furnace’s blower. Switch off your furnace off promptly and call our professionals at 270-358-3167 for support.

When you’re hearing an atypical noise from your furnace, Phelps Heating & Cooling, Inc. is here to help. Contact us at 270-358-3167 to request your furnace repair appointment now.