The AC unit in the attic clicks when the system is trying to turn off once it's reached the desired temperature. The clicking seems to be coming from the area just before the air enters the first air duct. Sometimes it can also create a booming sound that is very loud. It then turns itself back on again as normal to try and shut off again but most of the time it goes through it 3-4 times before actually shutting off completely. Any help is much appreciated!

Hello, OK, don't really know what I am talking about, but will try. Yesterday we had a new furnace installed, tomorrow the man is coming out to install the central a/c. Today I noticed that there is a white and black 'box' on the floor by the furnace. Then I saw that there is clear tubing (like from an aquarium pump) tied onto the washer hose into the wash tub. I followed the tubing and it runs up the wall (in the box that is covering the washer hot and cold knobs) through the drop ceiling, around other water pipes, makes a sharp turn then eventually makes its way to that black and white box. Now our old central a/c had a metal pipe that vented the water outside (the pipe went through the wall and brick to the outside, just right from the furnace). That metal pipe has been cut off almost flush with the wall now, and this crazy tubing is now running all over heck and creation before being tied to the washer hose that goes into the wash tub. Is this a correct thing to do? The tubing looks like it is almost crimped close in some places, till it runs into the drop ceiling and without moving the ceiling tiles I have no idea what it looks like. What if it leaks in the drop ceiling? Is it just laying on the drop ceiling? Is there even a proper slant to the tubing so it will drain properly? Should I yell and the installer? Please help.