When your furnace is operating properly, it should provide heat without creating too much sound. While it’s normal to catch your furnace making noise as it starts up, other sounds are showing your furnace needs immediate professional assistance.
Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating specialists are here to help with the best furnace repair in Morgantown, West Virginia.
1. Furnace Makes Banging or Knocking Sounds
You may have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a couple of problems. These range from gas increasing in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes grimy as time passes, so that’s why it’s important to schedule yearly furnace maintenance with Mountain Air. One of the things our professionals perform during this appointment is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise after ignition is delayed. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is regularly vented outside. This hazardous gas can be fatal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Mountain Air urges you to turn it off and contacting us at 304-413-1287. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous troubles that require immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to provide warm air throughout your house. If the ductwork wasn’t designed properly or is aging, it can be loud when your furnace is on. This may be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Mountain Air at 304-413-1287 and we’ll determine the problem.
2. Furnace Makes a Buzzing Sound
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically means there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to operate on the correct voltage. If wires or the box isn’t tight enough, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or chilly air across your residence, 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 Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it may be related to something little, like an unfastened screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and calling our heating pros at 304-413-1287 for help.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to tell you it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubricated. We are aware that maintenance frequently slips your mind, but our techs can get your furnace operating quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
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 is loose. If you’ve checked your vents but are still hearing whistling, Mountain Air can assist you. It’s critical to get loose ductwork fixed without delay, because it can create comfort problems in your house and inflate your heating expenses.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound frequently means there’s a problem with your furnace’s blower. Switch off your furnace off right away and call our pros at 304-413-1287 for help.
When you’re getting an atypical noise from your furnace, Mountain Air is available to support you. Contact us at 304-413-1287 to request your furnace repair appointment now.