I discussed for per month, air vents were being blowing air twice as tricky. It was due to the fact there was a leak inside the air-con coil. Our unit is 22 yrs outdated and is worked on 3x. They gave us a less expensive way to repair it etc. https://laneuerdp.blogars.com/26289813/the-definitive-guide-to-gohero-home-services-company