Let me start by saying I live in the St. Louis MO. area it is very hot and Humid here . I have been in my home since 2001 , when it was built .
As far as i can remember (which isnt tooo long ) the A.C. seemed to keep the house cooler than what it is now , I have a 1600sq. ft 2 story home and basement , which is where my furnace is 75,000 btu's . the A.C. unit is a Comfortmaker as is the furnace , 3 ton unit . The A.C. unit outside is 9 years old not like the rrest of the unit , but that is another story. I keep the unit free of any dirt or debri . the infide filter is changed religously every month.
The past 4 years or so the unit seems like it just runs and runs and the house still gets warm . the east side is my sons room and kitchen d-stairs , and the stairwell his room is at 80 degrees when it is hot out like today 90 this morning and will stay that way all day we have a portable ac in our b-room which runs ALL the time n-w corner of house. I have had Dixon's HVAC come out and look at it for the past 3 years added a little freon once he checked td's superheat and all lookes fine , when the sun sets our livingroom will get 80 dregrees also , I dont know why this has been getting eorse over the paast few years but it is about to drive me nuts , we keep all doors and windows shut also . We have a attached garage with our broom over it 2 years ago i noticed water stains in the ceiling , come to find out there was NO insul. in the rafters where the cold air vent was and it started sweating , But why would this start now and not from the time the house was built .. i hope someone could shed some new light on this for me as i am at wits frickkin end . Aslo have cold air returns in all upstairs rooms . Thanks