When your furnace is working correctly, it should deliver warmth without generating too much sound. While it’s normal to notice your furnace making noise as it turns on, other noises are showing your furnace requires immediate professional support.
Here are some of the most frequent furnace noises and what they might mean. If your furnace is making a strange noise, our friendly heating professionals are here to help with the best furnace repair in Cambridge, MD.
1. Furnace Making a Banging Noise
You might have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few problems. These include gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets grimy over the years, so that’s why it’s essential to schedule annual furnace maintenance with Pliescott HVAC Services LLC . One of the jobs our pros do during this appointment is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise after ignition is delayed. The ensuing gas buildup can crack your furnace’s heat exchanger, where natural gas turns into warmth. Any cracks in it can discharge carbon monoxide, which is regularly emitted outside. This toxic gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Pliescott HVAC Services LLC urges you to turn it off and calling us at 410-228-4822. Significant natural gas in your furnace or a fractured heat exchanger are hazardous troubles that should get immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to provide hot air throughout your house. If the ductwork wasn’t put in correctly or is getting dated, it can make a lot of noise when your furnace is on. This might be the case if your furnace makes a banging noise when it shuts off. Call Pliescott HVAC Services LLC at 410-228-4822 and we’ll pinpoint the problem.
2. Furnace Making a Buzzing Noise
If you observe your furnace making a buzzing noise, don’t delay calling 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 proper voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cold air across your rooms, and a capacitor, which turns on the motor. If either of these pieces 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 can be related to something little, like an unsecure screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating professionals at 410-228-4822 for help.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to get your attention it needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be lubed. We know that maintenance frequently slips your mind, but our techs can get your furnace running quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing sound, Pliescott HVAC Services LLC can provide support. It’s essential to get loose ductwork taken care of fast, because it can make comfort issues in your residence and increase your gas expenses.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you notice 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 immediately and reach our professionals at 410-228-4822 for help.
When you’re getting an uncommon noise from your furnace, Pliescott HVAC Services LLC is here to provide assistance. Contact us at 410-228-4822 to request your furnace repair appointment right away.