I have a bryant ac #383kav060111 it has a blinking led light that is continually blinking the chart on door says polarity is reversed but the air is cooling fine just seems to have the fan run a lot just been serviced could something be put on backwards

It it was just serviced, get them back to see what is causing the diagnostic light to blink. Can you tell us word for word what the diagnostic chart says for your number of blinks.