When your furnace is operating properly, it should provide heat without generating too much disruption. While it’s normal to hear your furnace making noise as it begins running, other sounds are signaling your furnace requires immediate professional support.
Here are some of the most reported furnace noises and what they can mean. If your furnace is making a strange noise, our friendly heating professionals are here to assist with the best furnace repair in Marshalltown, Iowa.
1. Furnace Making a Banging Noise
You might have a serious 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 several problems. These range from gas accumulating in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system turns dirty over the years, so that’s why it’s important to schedule routine furnace maintenance with B & G HVAC. One of the tasks our professionals perform during this service is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup can crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any fractures in it can leak carbon monoxide, which is normally emitted away from your home. This toxic gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, B & G HVAC advises turning it off and reaching us at 641-316-3360. Significant natural gas in your furnace or a broken heat exchanger are hazardous issues that require immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to move hot air throughout your house. If the ductwork wasn’t installed properly or is getting dated, it can be noisy when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Contact B & G HVAC at 641-316-3360 and we’ll pinpoint 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 relies on an internal transformer to operate on the right voltage. If wires or the box isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air throughout your home, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace switches on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be the result of something small, like an unsecure screw, or something major, like a broken component. In either case, we advise shutting your furnace off and calling our heating pros at 641-316-3360 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to alert you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be greased. We know that maintenance frequently slips your mind, but our techs can get your furnace operating quietly again rapidly.
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 hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still sensing noise, B & G HVAC can provide support. It’s essential to get loose ductwork taken care of fast, as it can make comfort troubles in your house and increase your energy 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 noise frequently means there’s an issue with your furnace’s blower. Turn off your furnace off immediately and reach our professionals at 641-316-3360 for help.
When you’re getting an atypical noise from your furnace, B & G HVAC is here to help. Contact us at 641-316-3360 to request your furnace repair appointment now.