When your furnace is operating like it should, it should deliver warm air without creating too much noise. While it’s normal to catch your furnace making noise as it turns on, other noises are showing your furnace needs immediate professional help.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an atypical noise, our friendly heating pros are here to fix the problem with the best furnace repair in Auburn and Opelika, Alabama.

1. Furnace Making a Banging Noise

You may have a serious 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 a couple of problems. These include gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s critical to set routine furnace maintenance with Farnell Mechanical, Inc.. One of the tasks our techs do during this appointment is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can leak carbon monoxide, which is normally released outside. This dangerous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Farnell Mechanical, Inc. advises turning it off and contacting us at 334-524-2458. Too much natural gas in your furnace or a broken heat exchanger are serious troubles that necessitate prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver heated air throughout your home. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with Farnell Mechanical, Inc. at 334-524-2458 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically means there’s an electrical situation, 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 isn’t tight enough, you may hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves hot or cold air around your rooms, and a capacitor, which triggers the motor. If either of these components are fading, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be due to something small, like an unsecure screw, or something serious, like a broken part. In either case, we recommend shutting off your furnace and contacting our heating pros at 334-524-2458 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to alert you it requires some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing may need to be lubricated. We know that maintenance sometimes slips your mind, but our pros can get your furnace heating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still noticing noise, Farnell Mechanical, Inc. can help. It’s critical to get loose ductwork taken care of quickly, since it can result in comfort problems in your home and inflate your utility bills.

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 racket often means there’s trouble with your furnace’s blower. Switch off your furnace off promptly and call us at 334-524-2458 for assistance.

When you’re noticing an atypical noise from your furnace, Farnell Mechanical, Inc. is here to help. Contact us at 334-524-2458 to request your furnace repair appointment right away.