re: So my ac is acting up

quote:

---

Home a/c units are meant to have the temp. in your house 20 degrees colder than outside temp so keep that in mind.

---

No. The temperature drop across the coil is nominally 20 degrees. The difference between indoor and outdoor temperature depends on other factors such as insulation, shade from trees, etc. I'd be pissed if my house couldn't maintain 75 or below even when it's 100 outside.

quote:

---

Also try closing the doors to rooms you don't use and closets, this helps concentrate the cool air in the places you spend most of your time. I even close my bedroom and bathroom door and I could tell a difference immediately.

---

Unless you have sufficient return with the doors closed, e.g. dedicated returns in each closed-off room or door undercuts sized in proportion to the supply, that's going to royally frick up the performance of your system. You'll pressurize those rooms, forcing cool air out of the building envelope, and the starved blower will bring in make-up air from every crack in the building envelope, meaning hot, humid attic and outside air which you now have to cool.