Is there a list of tips for troubleshooting to address the issue?
After my replacement AX860i started failing after 15 months, I nominated to not proceed with another RMA and instead bought a competitor's PSU.
Cost to post the failed PSU from here was half what I paid for it and I just couldn't in good conscience keep throwing away good money after bad.
I've always bought Corsair, when I could afford it, for the quality. The AX860i has the potential to be a magnificent PSU but they seem to be inherently flawed. Perhaps too clever for their own good.
While I'm very happy with the PSU I ended up replacing it with, I'm still disappointed that my 'dream build' is no longer true to my design and I'm quite a bit unnecessarily out of pocket too. While I know the 12 year warranty this one came with is still hampered by the return cost, its rock-solid reliability has so far left me confident I won't need to call on it.
I would dearly love to be able to 'fix' my AX860i without having to send it back though...