When your furnace is working properly, it should give warm air without creating too much disruption. While it’s normal to notice your furnace making noise as it begins running, other noises are indicating your furnace requires immediate professional assistance.

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

1. Furnace Makes a Banging Sound

You may have a serious issue on your hands if you’re noticing 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 range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy as time passes, so that’s why it’s critical to schedule routine furnace maintenance with Ameri-Tec. One of the tasks our professionals complete during this service is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The following gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can discharge carbon monoxide, which is regularly vented outdoors. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Ameri-Tec advises turning it off and reaching us at 717-479-4950. Excessive natural gas in your furnace or a broken heat exchanger are dangerous troubles that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air across your residence. If the ductwork wasn’t designed properly or is aging, it can make a lot of noise 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 figure out the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace relies on an internal transformer to run on the proper voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cold air across your space, and a capacitor, which triggers the motor. If either of these parts are going out, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something little, like a loose screw, or something major, like a broken part. In either case, we urge you to shut your furnace off and contacting our heating professionals at 717-479-4950 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to alert you it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing may need to be greased. We realize that maintenance often slips your mind, but our professionals can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still sensing sound, Ameri-Tec can help. It’s important to get loose ductwork fixed fast, as it can create comfort issues in your residence and inflate your energy costs.

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 sound frequently means there’s an issue with your furnace’s blower. Shut down your furnace off right away and contact us at 717-479-4950 for assistance.

When you’re hearing an uncommon noise from your furnace, Ameri-Tec is here to provide assistance. Contact us at 717-479-4950 to schedule your furnace repair appointment right away.