When your furnace is running properly, it should provide warmth without making too much noise. While it’s expected to notice your furnace making noise as it starts up, other sounds are signaling your furnace needs immediate professional support.
Here are some of the most common furnace noises and what they could mean. If your furnace is making an odd noise, our friendly heating specialists are here to assist with the best furnace repair in Marshfield, Wisconsin.
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 couple of problems. These involve gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets grimy over time, so that’s why it’s critical to schedule routine furnace maintenance with House of Heating Incorporated. One of the things our technicians do during this appointment is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The following gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can leak carbon monoxide, which is regularly emitted away from your home. This dangerous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, House of Heating Incorporated recommends turning it off and contacting us at 715-384-3163. Too much natural gas in your furnace or a broken heat exchanger are dangerous problems that require prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to deliver warm air across your home. If the ductwork wasn’t put in properly or is getting dated, it can be loud when your furnace runs. This can be the problem if your furnace makes a banging noise when it shuts off. Get in touch with House of Heating Incorporated at 715-384-3163 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 typically means there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to run on the right voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves hot or cold air around your rooms, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace turns on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be due to something small, like an unsecure screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and contacting our heating specialists at 715-384-3163 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to get your attention it needs some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubed. We realize that maintenance often slips your mind, but our pros can get your furnace running quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing noise, House of Heating Incorporated can help. It’s important to get loose ductwork repaired quickly, as it can result in comfort issues in your home and drive up your energy costs.
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 noise usually means there’s an issue with your furnace’s blower. Shut down your furnace off instantly and call our pros at 715-384-3163 for support.
When you’re noticing a weird noise from your furnace, House of Heating Incorporated is ready to provide assistance. Contact us at 715-384-3163 to schedule your furnace repair appointment today.