When your furnace is running correctly, it should give warm air without generating too much noise. While it’s expected to notice your furnace making noise as it begins running, other sounds are signaling your furnace should get immediate professional help.
Here are some of the most reported furnace noises and what they might mean. If your furnace is making an odd noise, our friendly heating professionals are here to assist with the best furnace repair in Laurel, MD.
1. Furnace Making a Banging Noise
You could have a serious issue 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 several problems. These include gas building up in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty over the years, so that’s why it’s important to set routine furnace maintenance with H&C Heating and Cooling. One of the tasks our techs perform during this work is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise when ignition takes longer than normal. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can emit carbon monoxide, which is normally vented outside. This hazardous gas can be fatal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, H&C Heating and Cooling recommends turning it off and calling us at 301-960-3247. Significant natural gas in your furnace or a broken heat exchanger are hazardous troubles that necessitate fast service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move heated air throughout your home. If the ductwork wasn’t designed properly or is getting dated, it can make a lot of noise when your furnace is heating. This may be the issue if your furnace makes a banging noise when it shuts off. Get in touch with H&C Heating and Cooling at 301-960-3247 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently 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 is loose, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends heated or chilly air throughout your space, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace starts.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it may be the result of something minor, like a loose screw, or something major, like a broken part. In either case, we advise shutting your furnace off and contacting our heating pros at 301-960-3247 for help.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to tell you it requires some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We know that maintenance often slips your mind, but our technicians 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 because of an air leak in your ductwork. You might also notice whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still sensing sound, H&C Heating and Cooling can help. It’s critical to get loose ductwork repaired without delay, since it can create comfort issues in your residence and increase your utility costs.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound usually means there’s a problem with your furnace’s blower. Turn off your furnace off now and contact our professionals at 301-960-3247 for assistance.
When you’re noticing a weird noise from your furnace, H&C Heating and Cooling is available to help. Contact us at 301-960-3247 to request your furnace repair appointment now.