Every two years, I have my A/C checked. Last year I called Real Chill for the first time. The first tech ($100) said all was fine. The hot weather hit a month later and the system blew hot air. They next tech ($150) said there was no freon and the “compressor pins had thermally opened” from being run with no freon. He tried cooling it but could do no more. Therefore, “Compressor will need to be replaced.” (These are quotes from the service invoice.) I called another company, who arrived the next day (I’d called on Sunday.) By then the compressor pins had apparently closed, so the compressor did not need to be replaced. What’s more, that company’s tech found the leak by which the freon had escaped. Something called the “king valve” had not been closed completely by (apparently) the first tech from Real Chill. This visit, which solved the problem, cost $750. When I called Real Chill (BTW, I agree with Greg T’s comment about the friendly receptionist) and told the owner, his response was “You don’t know how many times I’ve heard that. Wait until it runs out again.”
Well, it’s a year later with no further servicing. The compressor has never been replaced. My A/C is still pumping out cold air like a champ. I’m still waiting for the freon to run out.