When your furnace is running like it should, it should give warmth 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 needs immediate professional help.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Narvon, Pennsylvania.

1. Furnace Makes a Banging Sound

You may 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 indicate there could be a couple of problems. These range from gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over time, so that’s why it’s critical to book routine furnace maintenance with Ameri-Tec. One of the tasks our techs perform during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise after ignition is delayed. The resulting gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can leak carbon monoxide, which is ordinarily vented outdoors. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Ameri-Tec urges you to turn it off and calling us at 717-479-4950. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous issues that should get immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move warm air throughout your house. If the ductwork wasn’t put in properly or is getting dated, it can be noisy when your furnace runs. This can be the problem if your furnace makes a banging noise when it shuts off. Call Ameri-Tec at 717-479-4950 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the correct voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves warm or chilly air around your space, and a capacitor, which triggers the motor. If either of these parts are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be the result of something little, like an unfastened screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 717-479-4950 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to get your attention it needs some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn out or a bearing might need to be greased. We are aware that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent is loose. If you’ve examined your vents but are still sensing noise, Ameri-Tec can assist you. It’s critical to get loose ductwork repaired quickly, as it can create comfort problems in your house and drive up your heating bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s an issue with your furnace’s blower. Shut down your furnace off now and contact us at 717-479-4950 for help.

When you’re getting an atypical noise from your furnace, Ameri-Tec is here to support you. Contact us at 717-479-4950 to request your furnace repair appointment today.