When your furnace is operating like it should, it should give heat without generating too much sound. While it’s expected to catch your furnace making noise as it turns on, other sounds are indicating your furnace needs immediate professional assistance.

Here are some of the most frequent furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Cambridge, Maryland.

1. Furnace Makes Banging or Knocking Sounds

You may have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a couple of problems. These range from gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s important to book routine furnace maintenance with Pliescott HVAC Services LLC. One of the jobs our technicians do during this service is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup can break your furnace’s heat exchanger, where natural gas transforms into heat. Any breaks in it can leak carbon monoxide, which is ordinarily vented outside. This toxic gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Pliescott HVAC Services LLC advises turning it off and reaching us at 410-228-4822. Excessive natural gas in your furnace or a broken heat exchanger are serious problems that require fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver warm air throughout your residence. If the ductwork wasn’t put in properly or is getting dated, it can make a lot of noise when your furnace runs. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Pliescott HVAC Services LLC at 410-228-4822 and we’ll pinpoint 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 situation, 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 is loose, you might notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes warm or cooled air throughout your home, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be due to something minor, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 410-228-4822 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be greased. We are aware that maintenance frequently slips your mind, but our professionals can get your furnace heating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still noticing whistling, Pliescott HVAC Services LLC can provide support. It’s essential to get loose ductwork repaired without delay, because it can create comfort problems in your residence and drive up your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and reach our professionals at 410-228-4822 for assistance.

When you’re hearing a strange noise from your furnace, Pliescott HVAC Services LLC is available to support you. Contact us at 410-228-4822 to schedule your furnace repair appointment right away.