good for you! you found the hard part. did it transition or not? now you know it did, but the chiller didn't know it...makes troubleshooting much easier doesn't it! however, it is odd that the starter transitioned but didn't said that it didn't. that makes me think that the 1K6 (or whatever compressor is tripping) aux is not making or there is a bad voltage from the board to that switch.
Originally Posted by mountainman
make sure that you check out the high pressure switch at E5. many meters can record the highest and lowest voltage. perhaps you want to 'tee' in your meter and see how low the voltage really goes and if it coordinates with the transition trips. don't rule out the board either.
Someday, I hope to be just as brave as Harry Stamper.