Furnace noises are common to hear while your system operates—in fact, that’s how you know it’s running. But certain sounds can spell trouble for both your unit and home. Martens Plumbing & Heating is here to help you tell the difference between the normal furnace noises and the not-so-normal ones. Read them over below and call 262-363-7146 if you need immediate heating repair.
The Normal Furnace Sounds
Especially in older furnaces, you may hear a small pop or click right before you feel the warm air. That noise is actually good news—it means your system is turning on and getting ready to heat your Mukwonago-area home.
Popping in Your Ducts
As heat pumps through your vents, it changes the air pressure inside them. That can cause your ducts to pop as they expand and accommodate for the change. You may hear this most often as your furnace first kicks on.
You’re likely to hear this one toward the beginning of the heating season, as it usually comes from the machine’s working parts warming up after some time off. Think of it like getting out of a car after a long trip and groaning as you stretch.
The Bad Furnace Noises
If you hear any of these sounds, call our experts for a thorough repair:
Grinding and screeching noises usually mean something is wrong with the system’s working parts. It could be anything from a worn blower wheel to un-lubricated bearings. These parts are checked and cleaned with preventative maintenance, but if left unattended, can cause major problems for your furnace.
A rattling furnace usually comes from loose parts somewhere inside the system. In some cases, it could be as simple as a loose door cover. Take a quick look at the door—if it’s loose, you should be able to tighten it back up yourself. But if the rattling persists, it’s a sign of a deeper problem—one you’ll need our experts for.
If your furnace keeps making a boom sound, it’s likely due to built-up gas. This can result in a cracked heat exchanger, which is the worst-case scenario for your system. It’s also a major safety hazard. Call us for repair immediately if you hear this noise.
Martens Plumbing—Only a Call Away
Our experts are trained to work with furnaces of all shapes and sizes—including Bryant® systems. Whether you need a fix fast or you’re looking to prevent problems with a routine service call, we’re the team for the job.