Our AC Isn't Working!!?

My guess is your evaporator coil in the blower unit is dirty restricting the airflow, or maybe the blower wheel, check to see if there is a build up on the fins, If you knowledgeable about reading a wiring diagram you can check to see what speed your blower is running as it has low, med and high and it might not be wired for high in cooling mode which is easy as unplugging one wire and plugging in the other.

Check coils to see if clogged with dirt this will sometimes also cause it to freeze over restricting flow.When cleaning fins be careful not too bend any7 over which will block air and cause bigger problems and more expensive.You can use a brush on them but they also have a cheap tool used for this ask for tool to clean fins on air conditioner at hardware or appliance part store they'll know what you need.Also vacuum them

Did you have the coils cleaned. Dirty coils slows down air flow. This also would include the coild on the outside unit too.

If you t-stat i stuck in the low fan position. or it could be stuck in the middle. I would check the voltage going to the fan after that.

it could be the vents they could be pluged up it is good to have them cleaned once a yr, or so