I have a building full of the McQuay SWp045's and i'm having problems with two of them. They run great but a few times a day the 2 keep coming up with a motor protection alarm on compressor 1. The 1st and 4th compressors do not have motor protection on them. I've replaced the CCB1 board and the R1 relay per McQuays advice. Alarm still happening. These are 2 units on seperate floors and its random when they happen. Any help would be great.