carrier 30gx-207 screw chiller i get one alaram 48

[faizsid]

hi every one i have carrier 30gx-207 screw chiller i get one alaram 48 oil solenoid failure i check in manual test it's energized.& in auto. oil pump start but oil solenoid valve coil not energized, power is not comeing from scpm bord any one can helf me i need u'r support

[Brian_UK]

The code 48 seems to suggest a problem with the oil valve and the fact that the oil pump is not producing pressure. With that problem the solenoid will not open.

http://eto.carrier.com/litterature/cm/13056.pdf