You haven't given your location but from your specific mention of 240V I suspect you might be in the USA. This is important as the advice will differ from one location to another. How are you testing the voltage at the outlet?
Reply to the thread, titled "240V AC unit no power" which is posted in The Welcome Forum on Electricians Forums.
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc