Fenton UPS does not power up

 
 
 

 

 

UPS Fault – Does not power UP.
UPS Model – Fenton P600E
Type – 600Va / 3 Amp / 320 Watts

 
On first inspection the UPS looked dead totally and connecting it to the mains did not trigger the initial relay switch.  The first step was to check the fuse and check that it is fine. In this [...]