Hope this isn't a repost as my first try seems to have gone off into the "ether'..
I have a GE french door (bottom freezer) refrigerator, model PWE23KSKBSS circa 2016
The cooling and ice making performance is fine - no problems there.
Woke up this AM to a loud 'buzzing' sound from the refrigerator that was happening continuously, and for many minutes (didn't stop by itself). The sound was louder when I opened the upper doors, and sounded louder at the upper end of the fridge, but can't be certain as noise travels in strange ways.
Key thing is that I turned off power to the breaker, and after a minute, turned it back on and the noise is gone. I did hear the compressor restart (slowly, as this is an inverter driven machine). Machine is operating normally now.
No error codes or lights flashing on display.
The noise is LOUD, and sounds like a pump, but I don't know of any pumps on this beast. Didn't sound like a fan, but who knows. Low pitched and continuous.
This has happened one or twice before -- maybe several months ago, and the fridge works fine after a power reset. I did take the back cover off last time -- cleaned everything and nothing unusual found.
Any thoughts? Online advice on noises seems to focus on fans, water valves, compressor start devices (this is an inverter unit), and ice maker components.
I did make a video recording, but don't know of a way to post it to this forum. Would be happy to share this.