Liebert Hipulse D Ups Manual Fix May 2026
Once the "Inverter OK" indicator glows steadily, the load can be transferred back to the inverter. Switching to Maintenance Bypass
If your UPS is displaying an alarm, the first step is to identify the message on the LCD display . Common faults include:
: "Battery Low Trip" or "Battery SW/Breaker Open" alarms require checking the battery circuit breaker, which must often be closed manually. Manual Reset and Startup Procedure liebert hipulse d ups manual fix
: Flashing "Inverter OK" LEDs may signify an output overload, short circuit, or inverter over-temperature.
: Use the push-button system control to navigate to the reset option after a recognized transfer. Cold Start/Restart : Ensure the input breaker is closed. Once the "Inverter OK" indicator glows steadily, the
: Address the root cause (e.g., reduce the load if there was an "Output Overload" alarm).
If the UPS requires internal repair, you must manually transfer the load to maintenance bypass to ensure continuous power: Manual Reset and Startup Procedure : Flashing "Inverter
To manually restore the system after a controlled transfer to bypass or an Emergency Power Off (EPO) action, follow these general steps:
