we did have the same problem, after replacing many parts, i had him replace the pr relay, after turning it on, he said he saw the U relay led on dimly, the relay would not pick,then it would chatter, and it did this a few times and thru up the same faults. he replaced the little black UAX relay on the main board, the board behind the relay board. that was 2.5 weeks ago, and it is still running with no faults. this one was killing us as well, give it a try, might help ours was usually at the bottom floor as well
Last edited by Vatorgator; 03/25/15 03:51 AM.
