Last July, the weather got harshly sizzling and humid! The outside temperature was steadily in the upper eighties and low nineties, and the a/c device was running constantly. I started to notice that the cooling system was having some trouble keeping the house at a comfortable temperature, however certain rooms felt a bit sizzling and sticky and decreasing the control device didn’t make much difference, however i then realized that there was more dust blowing around and settling on surfaces than usual, and even a faint musty smell in the air, and assuming there was a problem with the a/c unit, I set up an appointment for repairs from a local Heating as well as Air Conditioning business. They were harshly tied up and I was forced to wait until the following weekâ€¦ For the next many mornings, my house was overrun with flies. I chased them with fly spray, killed them with the flyswatter and sucked them up with the vacuum cleaner. I found them crawling on my windows and ceilings, and flying around in every room. It was really horrible and I couldn’t figure out where they were coming from, when the Heating as well as Air Conditioning business showed up, I told him about the flies. She completed a thorough inspection of the cooling system and found leaks in the seams plus holes in the duct system, but she said that the defects in the ducts were the cause of all my complaints with comfort, dust and bugs. I had to schedule a separate appointment for duct sealing, and by then, I was going out of my mind. Fortunately, the duct sealing process fixed everything. After that, there was no more flies and the a/c device was able to keep a nice cool and even temperature.