When your furnace is operating properly, it should give heat without making too much disruption. While it’s expected to notice your furnace making noise as it starts up, other disruptions are indicating your furnace needs immediate professional assistance.
Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an atypical noise, our friendly heating pros are here to assist with the best furnace repair in Wausau, Wisconsin.
1. Furnace Makes Banging or Knocking Sounds
You might have a critical problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These include gas building up in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system becomes filthy as time passes, so that’s why it’s critical to schedule seasonal furnace maintenance with Gilray Heating and Cooling. One of the jobs our professionals do during this work is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into warm air. Any fractures in it can emit carbon monoxide, which is normally released outside. This dangerous gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Gilray Heating and Cooling recommends turning it off and calling us at 715-301-0727. Significant natural gas in your furnace or a ruptured heat exchanger are serious troubles that necessitate fast attention.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to provide hot air around your residence. If the ductwork wasn’t installed correctly or is getting dated, it can be loud when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Call Gilray Heating and Cooling at 715-301-0727 and we’ll figure out the problem.
2. Furnace Makes a Buzzing Sound
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often is telling you there’s an electrical problem, 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 isn’t tight enough, you might notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves hot or cooled air across your rooms, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace turns on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it may be the result of something little, like a loose screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 715-301-0727 for support.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to tell you it needs some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be greased. We realize that maintenance frequently slips your mind, but our professionals can get your furnace operating quietly again rapidly.
5. Furnace Making a Whistling Noise
When you’re noticing your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is working if a floor vent is loose. If you’ve checked your vents but are still sensing whistling, Gilray Heating and Cooling can help. It’s essential to get loose ductwork fixed quickly, as it can create comfort problems in your house and increase your gas costs.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal racket usually means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and call our professionals at 715-301-0727 for assistance.
When you’re getting a strange noise from your furnace, Gilray Heating and Cooling is available to help. Contact us at 715-301-0727 to book your furnace repair appointment now.