Outside Central AC Unit & System Making Loud Buzzing, Humming or Other Noise in Silverado Ranch, NV

Hearing abnormal noises emitting from the air conditioner when it starts up or when it shuts off is never a normal symptom. When you hear these noises, the air conditioning system is protesting that there is an issue that needs to be addressed. Brushing off the unusual noises will only cause the problem to escalate into something more costly as a domino effect takes place inside the AC’s mechanical structure. In order for the air conditioner to produce comfortable temperatures inside your home, all of the moving parts work together to effectively do its job. When components wear, the others will try to compensate, putting extra strain on those parts which wear down all the more. Where many issues can be a simple fix when the noises manifest, it is important to avoid extra costs and additional wear on your cooling system. We at Air Supply Heating & Air Conditioning would like to share a few reasons as to why your air conditioner is making strange sounds when it starts up and/or shuts down.

What is Causing My Central Air Conditioning System to Make Loud Noises

1) Compressor Motor. When the air conditioner flips on and the noises are usually only heard then, the compressor motor is a likely suspect. Additionally, if there is a noticeable decline in the cooling output, it increases the likelihood it is the in the compressor motor.
2) AC Dampers. The dampers causing the noise can be another possibility contributing to the bizarre noises. In order to change the amount of airflow reaching different parts of your home, there are some air conditioning systems that have dampers. The damper closing after the AC shuts off, creating the slamming sounds that might be heard.
3) Air Ducts. It is common to hear loud creaking noises as the air ducts expand and contract from the constant temperature and pressure changes in sheet metal air duct systems. Where these sounds can be normal, there is a possibility that the air ducts may have a leak or are disconnected. If you notice the cool air is not coming through the vents efficiently, it could be due to poor ductwork.
4) Air Handler or Fan. The air handler or fan can be causing the blower wheel to bang against another part of the unit, stemming from many underlying issues. There are instances, for example, where the fan’s mounts can get loose and throw it off balance as it slows down, causing it to hit its enclosure, producing the unusual clanking sounds.

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These are just the common occurrences where sounds are produced from the air conditioner shutting off or powering on. Ultimately, when the sounds are first noticed, call a professional from Air Supply Heating & Air Conditioning for an assessment. A certified technician can find the source of the problem and make the necessary repairs to ensure the noises ceases and the cooling system is operating efficiently to its full potential. Call from Air Supply Heating & Air Conditioning today and let our experts get your air system running efficiently to keep your home comfortable.