I have a '02 Accord and the a/c only blows wam or outside air.Do I need to recharge the system or what???thanks

 

You need to take to a place that can test your a/c to make sure that it only needs more freon.

 

is it something I can do myself?Where do I check freon level?

 

If you are not sure where to check the freon level, have a mechanic perform a test to be sure that there is no leak on the system.

 

In some states, if you're not certified, it's against the law to attempt to inject freon into your own car--bad for the ozone layer if not used properly.
Check to make sure all the belts are on and in good shape. Sometimes the A/C compressor belt can slip or break and cause the warm air problem.
Sertepinoy is right about the mechanic thing....