Hey Guys, to give you n update on what happened with me:
I took it to the Apple Store and they replaced my Power supply because my iMac was making a buzzing noise originally.
This fixed the buzzing noise but then I started getting the random shut downs. I didn't have this issue until they replaced my power supply.
I took it back a second time and they did a full test on my system, found no issues so replaced the power supply a second time.
I still got random shut downs.
I took it back a 3rd time to the Apple Store and complained again. Every time I kept telling them about this forum but they kept ignoring it and weren't interested.
So this time they replaced the Logic board, and they did this for free because of my bad experience. Thank heavens, I saved over $800.
It randomly shut down again when I got home. Now I was ****** off.
I called and spoke to manager at the Apple Store who told me to do a clean install of the system software to rule out a software issue. I said i could do that. The only issue was that the stupid machine wouldn't stay on long enough to reformat and do a clean install.
I didn't make a genius bar appointment the next time, I just turned up at the Apple Store and asked to see someone. I explained I had been there 3 times before and I still have the issue. I was really annoyed.
They were very accommodating.... I explained I had been here 3 times already, and I want this resolved today. I also said I was told to do a clean install but I couldn't for obvious reasons. I also said I know that wont fix the issue because of what i had read on this forum.
He said he would see what he could do for me.
To cut a long story short....sometimes there is a happy ending to a story.....
They said because I have been back 4 times, they will replace my iMac and give me a brand new one with the same specs as my current model. I couldn't believe it. But that was the right thing to do. I am also way out of warranty and I have no Apple Care.
I guess that's what makes Apple unique... they will always do the right thing by the customer in the end and that's why I continue to use their products.
They probably could saved themselves the expense and replaced my PSU with the Liteon brand, but they just don't listen or read forums. I guess it just seem very far fetched that so many Delta PSUs are faulty...... it just doesn't really make sense. But I do think this is a definite power supply issue. It's just weird that this issue has been going on since 2012 and its still happening on current models and the guys at the Apple Store make out like they have never seen this issue before and don't know how to fix it.
I just hope this doesn't happen to my new machine and I admit having lost confidence in some of Apples products. I am a huge Apple fan, but I am left feeling less so now after this experience.
But I still love MacOS and just can't use Windows.
So if you can get to an Apple Store, and you still have this issue after multiple repairs, you should be able to get a new replacement.
