Volume lights of homepod flashing

I've tried this: https://discussions.apple.com/thread/8369663, but no results.

The answer from the Genius at the Apple Store: "Maybe you have too much devices at your HomeKit network. It shouldn't be a problem, but it can be"

Hi Vancouver22, thank you very much for your answer and your help, although it didn't work.

I have reduce the HomeKit products that I've linked to my Home app, I have erased the HomePod from the Home app in my iOS devices, and also in my iCloud. I also tried to disconnect the HomePod more than 24h, but again, no results.

If nothing changes, I'll try again next year...

Now, from apple support, they told me by phone that it will be a hardware failure with a not determined cause, but it's out of warranty, and the only solution is to pay more than 90% of the cost of the HomePod to get a new one.

It isn't the answer that I was expecting from Apple.

Unfortunately, it doesn't work with my HomePod. I reviewed all my appleID (I usually manage two accounts), and the HomePod doesn't appear in any. I tried to reset the unit, but the result was the same, two volume lights blinding. I will wait one year and I'll try it again. Thank you!!