When your furnace is running properly, it should deliver heat without generating too much sound. While it’s expected to hear your furnace making noise as it starts up, other disruptions are showing your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they can mean. If your furnace is making a weird noise, our friendly heating specialists are here to help with the best furnace repair in Wilmington, Delaware.

1. Furnace Making a Banging Noise

You could 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 indicate there could be a few problems. These involve gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy as time passes, so that’s why it’s important to book yearly furnace maintenance with Ambience HVAC, Inc.. One of the tasks our professionals do during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise if ignition is delayed. The subsequent gas buildup may break your furnace’s heat exchanger, where natural gas turns into heat. Any cracks in it can leak carbon monoxide, which is regularly emitted away from your home. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Ambience HVAC, Inc. urges you to turn it off and calling us at 302-239-HVAC (4822). Excessive natural gas in your furnace or a ruptured heat exchanger are serious troubles that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air throughout your home. If the ductwork wasn’t installed correctly or is getting dated, it can be noisy when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Call Ambience HVAC, Inc. at 302-239-HVAC (4822) and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to work on the correct voltage. If wires or the box needs to be tightened, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or chilly air across your rooms, and a capacitor, which triggers the motor. If either of these pieces are fading, they will buzz when the furnace turns 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 major, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 302-239-HVAC (4822) for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to get your attention it could use some TLC. If you’ve skipped 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 technicians can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent is loose. If you’ve examined your vents but are still sensing whistling, Ambience HVAC, Inc. can assist you. It’s important to get loose ductwork fixed without delay, because it can make comfort issues in your house and increase your heating costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise frequently means there’s a problem with your furnace’s blower. Switch off your furnace off instantly and contact us at 302-239-HVAC (4822) for assistance.

When you’re getting an atypical noise from your furnace, Ambience HVAC, Inc. is here to support you. Contact us at 302-239-HVAC (4822) to book your furnace repair appointment right away.