Hi Tamil,
The issue with the 8810 Chassis and 8900 modules only affects serial number codes
0533x-xxxxx or earlier. So yours doesn't have this problem.
That doesn't mean there isn't a potential problem with a PSU itself or the PSU Controller.
The only other potential issue I notice in your output above is that your input voltage is >55 VDC. The PSU should be supplied with -48VDC @ 50A.
Over time, voltage outside of tolerance can cause undue stress on components and lead to premature failure. I'm not saying that is the case here, but is a possibility.
In this case, I would suggest reducing supply voltage to 48V and seeing if the problem resolves itself. Beyond that, this would best be solved by GTAC.
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-contact-Extreme-Networks-Global-Tec...
Thanks,
-Drew