When your furnace is operating properly, it should give heat without making too much disruption. While it’s expected to catch your furnace making noise as it turns on, other noises are showing your furnace should get immediate professional support.

Here are some of the most reported furnace noises and what they might be signaling. If your furnace is making a strange noise, our friendly heating professionals are here to assist with the best furnace repair in Mason City, Iowa.

1. Furnace Makes a Banging Sound

You might have an urgent situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a few problems. These range from 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 important to set routine furnace maintenance with Mechanical Air Systems Co. One of the things our pros perform during this appointment is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The following gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can emit carbon monoxide, which is normally vented outdoors. This toxic gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Mechanical Air Systems Co advises turning it off and calling us at 641-243-4654. Significant natural gas in your furnace or a fractured heat exchanger are serious issues that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air throughout your home. If the ductwork wasn’t put in properly or is aging, it can make a lot of noise when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Contact Mechanical Air Systems Co at 641-243-4654 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the correct voltage. If wires or the box isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air around your rooms, and a capacitor, which triggers the motor. If either of these components are fading, 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 the result of something small, like an unfastened screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and calling our heating professionals at 641-243-4654 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to get your attention it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing may need to be greased. We are aware that maintenance sometimes slips your mind, but our technicians can get your furnace running quietly again rapidly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You may also hear whistling while the furnace is running if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing sound, Mechanical Air Systems Co can assist you. It’s essential to get loose ductwork fixed quickly, since it can create comfort issues in your residence and drive up your gas 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 noise frequently means there’s an issue with your furnace’s blower. Turn off your furnace off promptly and reach our pros at 641-243-4654 for help.

When you’re getting an atypical noise from your furnace, Mechanical Air Systems Co is here to help. Contact us at 641-243-4654 to book your furnace repair appointment today.