When your furnace is working correctly, it should deliver warm air without generating too much sound. While it’s normal to hear your furnace making noise as it starts up, other noises are showing your furnace needs immediate professional assistance.
Here are some of the most reported furnace noises and what they can mean. If your furnace is making an odd noise, our friendly heating specialists are here to assist with the best furnace repair in Rapid City, South Dakota.
1. Furnace Making a Banging Noise
You may have an urgent issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a few problems. These range from gas accumulating in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty over time, so that’s why it’s essential to set yearly furnace maintenance with Precision Mechanical. One of the jobs our technicians do during this appointment is clean your furnace’s burners. When this component gets dirty, you may hear your furnace making a loud rumbling noise when 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 discharge carbon monoxide, which is normally vented outdoors. This dangerous gas can be fatal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Precision Mechanical recommends turning it off and contacting us at 605-206-3766. Excessive natural gas in your furnace or a fractured heat exchanger are hazardous troubles that should get immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver warm air throughout your home. If the ductwork wasn’t put in correctly or is getting old, it can be loud when your furnace is heating. This may be the issue if your furnace makes a banging noise when it shuts off. Call Precision Mechanical at 605-206-3766 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently means there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to operate on the right voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves hot or cooled air across your residence, and a capacitor, which turns on the motor. If either of these pieces are failing, 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 due to something minor, like an unsecure screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating pros at 605-206-3766 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 get your attention it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing could need to be greased. We know that maintenance frequently slips your mind, but our professionals can get your furnace running quietly again rapidly.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You might also notice whistling while the furnace is operating if a floor vent isn’t secure. If you’ve checked your vents but are still sensing sound, Precision Mechanical can help. It’s important to get loose ductwork repaired quickly, since it can create comfort problems in your house and inflate your gas bills.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s an issue with your furnace’s blower. Shut down your furnace off right away and contact our pros at 605-206-3766 for assistance.
When you’re noticing a strange noise from your furnace, Precision Mechanical is ready to provide assistance. Contact us at 605-206-3766 to request your furnace repair appointment now.