Is Your Home Air Conditioning Service Making an Unusual Humming Noise?

Getting the maximum benefit from your home AC service in summer means saving a few hundred dollars on your monthly bill. This is highly probable if you are practicing the best tips to optimize the efficiency of your cooling system.




In some cases, however, some factors highly affect the performance of an air conditioner. A dirty filter can lead to clogging which blocks the ideal airflow. Clogging can lead to fan blower failure and cause overheating and a possible fire hazard. And some point, the age of the unit also holds immense weight on the AC’s overall functionality.

Multiple reasons can cause different issues, but let’s focus on one particular concern that many people can easily detect as a possible problem - a constant humming noise when the system is running.

The humming noise coming from the cooling unit can be because of one problem or a combination of several others. Whatever it may be, if the noise is constant and continuous, call an air conditioning repair professional. This is a job trained technicians can easily handle. It can vary from a simple tune-up job, a part replacement, or something else entirely. Even so, learning what the possible causes might be can help you determine the type of job that your AC may need.

Seized Compressor. A soft hum can be heard when the unit is on, but when it does not release cooled air while running, the problem might be seized compressor. The compressor is responsible for pumping and pressurizing the refrigerant to move through the system. As it works, it runs hot (up to several hundred degrees). This device relies on a few ounces of oil (as a lubricant) to work smoothly. When oil leaks or breaks down due to contamination, the compressor will fail. This failure will result in an unpleasant humming noise. Cleaning it might be a temporary solution, but a part replacement is ideal when the damage is severe.

Marthedal Solar, Air & Heating - Fresno Air Conditioning services, maintenance, and repair is always customer focused. We ensure that clients get the most out of their AC service. Our home automation technology allows homeowners to take control of their systems on the go.