Sterlco GC Series Central Chiller - Manual (Page 51)

GC Series Central Chillers Chapter 6: Troubleshooting 51 of 79
Code VFD Alarm Possible Cause Solution
line phase or blown fuse. Fault trip
occurs when DC voltage ripple
exceeds 14% of nominal DC voltage. Check for input power supply
imbalance.
Check fault function parameter
setting.
F0034 MOTOR PHASE Motor circuit fault due to missing
motor phase. Check motor and motor cable.