My Avalon Enermax PSUs are dying one after another. 3 PSUs dead in 3 days, and I can't pinpoint the reason.

Any ideas why it may happen? Is it a common for Enermax PSU to die like this? None of the Corsair PSUs died at the same time.

Anyone had their Avalon PSU dead and was able to identify the reason?

If Enermax is indeed problematic, what is the recommended replacement?

I appreciate any help or advice you may have regarding this...