When UPS (uninterruptible power supply) does not output power, this may be caused by various reasons. Firstly, it is necessary to check whether the input power of the UPS is correctly and firmly connected to the power outlet, and to confirm that the power cord is not loose or damaged.
Secondly, check if the UPS battery pack is fully charged or if there is a malfunction. The battery pack may not be able to supply power properly due to aging or internal damage. In addition, there may be faults in the internal circuits of the UPS, or its protection mechanism may be triggered, which could result in the UPS being unable to output electrical energy. It is recommended to investigate these potential causes one by one according to the following steps:
Check the power connection, confirm the battery status, and inspect the internal circuits and protection mechanisms. If damaged components are found during the inspection process, they should be replaced immediately; If the protection mechanism is triggered, try resetting it. If the problem is still not resolved after these steps, contact professional maintenance personnel to conduct a detailed inspection and necessary repair work on the UPS.