When your furnace is working properly, it should give warm air without making too much sound. While it’s expected to hear your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.
Here are some of the most common furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to help with the best furnace repair in Tucson, Arizona.
1. Furnace Making a Banging Noise
You could have an urgent issue on your hands if you’re noticing 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 include gas accumulating in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system gets filthy as time passes, so that’s why it’s critical to book annual furnace maintenance with Ambient Air. One of the tasks our technicians perform during this work is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes more time. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can emit carbon monoxide, which is normally released outdoors. This hazardous gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Ambient Air advises turning it off and contacting us at 520-357-4912. Too much natural gas in your furnace or a broken heat exchanger are serious troubles that necessitate fast service.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to deliver warm air around your residence. If the ductwork wasn’t put in properly or is getting dated, it can be loud when your furnace is heating. This might be the case if your furnace makes a banging noise when it shuts off. Call Ambient Air at 520-357-4912 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 issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to run on the right voltage. If wires or the box isn’t tight enough, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or cold air around your home, and a capacitor, which turns on the motor. If either of these parts 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 could be due to something small, like an unsecure screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 520-357-4912 for help.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to alert you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing might need to be lubricated. We realize that maintenance often slips your mind, but our techs can get your furnace heating quietly again fast.
5. Furnace Making a Whistling Noise
When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve checked your vents but are still sensing noise, Ambient Air can help. It’s critical to get loose ductwork repaired fast, as it can create comfort issues in your house and inflate your heating expenses.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s trouble with your furnace’s blower. Turn off your furnace off right away and contact us at 520-357-4912 for assistance.
When you’re noticing a weird noise from your furnace, Ambient Air is available to support you. Contact us at 520-357-4912 to book your furnace repair appointment right away.