Maintenance & Service Reference Model: Liebert Hipulse D (Single Phase / Three Phase) Category: Uninterruptible Power Supply (UPS)
The Hipulse D is extremely sensitive to phase rotation and voltage harmonic distortion. Often, the utility voltage is within spec, but the phase sequence is wrong or the DC bus pre-charge resistor (R01-R03) has failed. liebert hipulse d ups manual fix
Check for blocked air vents or fan failures. Ensure the ambient temperature is below 40°C. Maintenance & Service Reference Model: Liebert Hipulse D