When your furnace is running like it should, it should deliver heat without generating too much noise. While it’s normal to catch your furnace making noise as it turns on, other disruptions are indicating your furnace should get immediate professional assistance.

Here are some of the most reported furnace noises and what they might be signaling. If your furnace is making a strange noise, our friendly heating professionals are here to assist with the best furnace repair in Houston, Texas.

1. Furnace Makes a Banging Sound

You could have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a couple of problems. These range from gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over time, so that’s why it’s essential to set seasonal furnace maintenance with Air Current AC & Heat. One of the tasks our professionals do during this service is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise when ignition is delayed. The following gas buildup can break your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can emit carbon monoxide, which is regularly vented away from your home. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Air Current AC & Heat advises turning it off and reaching us at 713-322-4318. Too much natural gas in your furnace or a broken heat exchanger are hazardous problems that require immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air around your house. If the ductwork wasn’t installed correctly or is aging, it can be noisy when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Air Current AC & Heat at 713-322-4318 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work on the right voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or cooled air throughout your space, and a capacitor, which triggers the motor. If either of these pieces are going out, 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 a loose screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and calling our heating specialists at 713-322-4318 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

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

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You could also notice whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still hearing whistling, Air Current AC & Heat can help. It’s important to get loose ductwork taken care of without delay, because it can result in comfort problems in your residence and drive up your utility bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket usually means there’s an issue with your furnace’s blower. Turn off your furnace off right away and reach our pros at 713-322-4318 for help.

When you’re getting an uncommon noise from your furnace, Air Current AC & Heat is ready to help. Contact us at 713-322-4318 to request your furnace repair appointment now.