Modern air conditioners are designed to operate with optimal quietness. High-efficiency AC units incorporate sound-dampening technology that is coupled with a two-stage compressor to keep the noise levels below 55 decibels. Therefore, it follows that unusual sounds emanating from your air conditioner are clear indications that your unit requires repair or an upgrade. Among the common issues that call for the assistance of a certified professional in ductless air conditioner technology is a buzzing noise, which often indicates the following problems.
The compressor is a vital component in your AC system that is tasked with raising the pressure of the refrigerant in the unit. A buzzing sound might indicate that your compressor is not functioning properly, meaning that your outdoor air conditioner is drawing low amperage. Read more on this article: http://bit.ly/2rkuHWJ