When your furnace is running correctly, it should deliver heat without making 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 common furnace noises and what they might mean. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in Crown Point, Indiana.

1. Furnace Makes Banging or Knocking Sounds

You may have a critical problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be several problems. These range from gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty as time passes, so that’s why it’s essential to schedule yearly furnace maintenance with Struven Heating & Cooling. One of the things our technicians complete during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The subsequent gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can emit carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Struven Heating & Cooling urges you to turn it off and contacting us at 219-292-0956. Excessive natural gas in your furnace or a broken heat exchanger are critical troubles that require immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air around your house. If the ductwork wasn’t put in right or is getting old, it can be noisy when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Call Struven Heating & Cooling at 219-292-0956 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t hesitate 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 run on the correct voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or chilly air around your rooms, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be the result of something little, like an unsecure screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists at 219-292-0956 for assistance.

4. Furnace Squeals

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

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent is loose. If you’ve examined your vents but are still noticing noise, Struven Heating & Cooling can assist you. It’s important to get loose ductwork fixed without delay, since it can create comfort problems in your residence and inflate your utility bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise usually means there’s an issue with your furnace’s blower. Turn off your furnace off promptly and reach our pros at 219-292-0956 for help.

When you’re noticing a strange noise from your furnace, Struven Heating & Cooling is available to support you. Contact us at 219-292-0956 to request your furnace repair appointment now.