i got a york ycal at this machine shop and it is tripping # 2 compressor on mp/lp/hp saftey, i checked my pressure cut outs on high at 415 psi and low is at about 35psi. motor protection module is not showing a cut out on digital read out, sometimes it will cycle through at h 1,7 and the go back to normal which is the line chasing in a circle, on start up the compressor will start up and operate 275 disch, 66 suc, 53*dis sh, 13* suc sh at 80 % at step 75 on loading or full load, its really weird all the numbers shake out ok but it will be tripped out the next day. thinking motor protection module and also loose wiring kinda went through most of it today, well if any one out there has had any problems with these york chillers i would like to hear from you -- thanks patick