Although it does not fit the thread title, all these A/C stories are prompting me to add my own. I "fixed" my A/C by (a) using night-time cooling to reset the temperature inside the house by morning and then relying on reasonably good insulation to minimize the day-time heating; (b) calling the repair service; (c) having the repair "team" replace the entire unit (it was out of coolant, and so old that no new coolant is available for this model...). Step (c) has not yet happened, but is scheduled to happen soon; in the meantime, I am relying on (a) to get me through the second hottest week of the year (90+ F outside; still less than 80 F inside, with no artificial cooling involved).