- Visual inspection and perform general cleaning if necessary for the UPSs
- To check if any loose connections inside and possible electronic/electrical/mechanical components failure caused by dust and system environment
- To check if any faulty ventilation fan corrosive PCBs, abnormal status, etc
- To check the condition of the charging rate, input and output data, etc
- To perform UPS diagnostic test with / without load
- To perform full functionality test, switching over from TNB to UPS and vice versa
- To perform load balancing checking and recommendation
