When your furnace is operating like it should, it should give warmth without making too much sound. While it’s expected to catch your furnace making noise as it starts up, other disruptions are indicating your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Sandpoint, Idaho.

1. Furnace Makes a Banging Sound

You could 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 several problems. These range from gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s essential to book annual furnace maintenance with Age Heating & Cooling. One of the things our pros perform during this service is clean your furnace’s burners. When this part gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup may break your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can leak carbon monoxide, which is regularly vented away from your home. This toxic gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Age Heating & Cooling urges you to turn it off and contacting us at 208-603-2210. Excessive natural gas in your furnace or a broken heat exchanger are dangerous issues that necessitate fast service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move warm air around your residence. If the ductwork wasn’t put in properly or is aging, it can be loud when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Call Age Heating & Cooling at 208-603-2210 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work on the proper 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 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 starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be related to something minor, like an unfastened screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and getting in touch with our heating pros at 208-603-2210 for assistance.

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 could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubricated. We realize that maintenance frequently slips your mind, but our techs can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still noticing sound, Age Heating & Cooling can provide support. It’s critical to get loose ductwork repaired fast, as it can create comfort troubles in your house and drive up your heating bills.

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 often means there’s an issue with your furnace’s blower. Switch off your furnace off now and contact us at 208-603-2210 for help.

When you’re hearing an atypical noise from your furnace, Age Heating & Cooling is available to provide assistance. Contact us at 208-603-2210 to request your furnace repair appointment today.