Your ductwork is essential for air distribution, which makes it liable to debris/dust build-up and loose connections after prolonged use, but loose connections and your ducts wearing out can cause popping noises when air passes through! Poorly installed ductwork can also cause popping noises
Its design prevents it from making sounds inside your home, your HVAC may get noisy frequently if it’s brewing a problem, a popping sound often has drastic consequences for your HVAC system and safety. It sounds almost like popcorn popping or cracking and can be uncomfortable. Turn your system off first when you hear the popping sounds. If your equipment freezes up or builds up ice, you will likely hear popping noises! When your equipment freezes up, it triggers a sensor that eliminates the ice. Your HVAC system enters defrost mode to clear the ice. As the ice melts, it cracks and falls off, creating disruptive sounds. While this may seem normal, repeated and too close together, it signals a deeper problem. Then you should call an HVAC business for a thorough inspection. Water can destroy some electrical components in your HVAC unit. During fall, your HVAC is likely to be exposed to rainwater. and damaging some components, the water may also cause your system to make popping noises. If you hear popping sounds from your HVAC system and smell burning, electrical malfunctions may be the culprit. Electrical sparks caused by rodents or wear and tear can cause fires in your unit! Fire in your equipment is a high-risk safety situation for you and your loved ones. You should turn off your main switch and call an HVAC professional if you hear popping sounds. If the popping sounds are coming from your air duct, you have ductwork complications. Your ductwork is essential for air distribution, which makes it liable to debris/dust build-up and loose connections after prolonged use, but loose connections and your ducts wearing out can cause popping noises when air passes through! Poorly installed ductwork can also cause popping noises. The ducts will shake when the air passes through them due to improperly secured ducts. Consistent popping noises can cause discomfort plus indicate a faulty HVAC system. When you hear cracking or popping noises from your system, avoid DIY inspections and fixes.