i have tried to recharge the a/c but it still does not work. i have a 94 acura integra gsr. i went through three bottles and it is still hot. any solution. dont want to go to the shop and pay for it. help!!

fyi: the fan was not spinning while charging. i didnt see any leak.
am i suppose to open the bottle while i plug it in? and when am i suppose to see result?