High pitch playbar noise

Hello,

Have you attempted to remove the optical cable from the back to see if you still hear the high pitch sound? What other electronics are plugged into power around the PLAYBAR?

Please submit a diagnostic when you hear this sound and I'll be happy to take a look. If you need to plug the device back in to power, please leave the PLAYBAR plugged in for about 20 minutes, then grab the diagnostic. Please reply back with your number here. 

I have just purchased a Playbar and it also emits an incredibly high pitched buzzing.  However, unlike the poster above this noise is constant and is clearly audible at all times, even when the Playbar is acting as a speaker with sound or music coming out of it, and when idle as well.  It is going back immediately unless it can be fixed?

Hello Derek,

What electronics are located around the PLAYBAR? Have you tried power cycling the device (unplugging from power then plugging back into power) to see if you still get this sound? 

Please also submit a diagnostic when you hear this sound and I'll be happy to take a look. If you power cycle the device, please leave the PLAYBAR plugged in for about 20 minutes, then grab the diagnostic. Please reply back with your number here. 

Dominique, Thanks for the quick reply. The only electronics located near the Playbar are the TV, and the satellite receiver (which is several feet away in a cabinet). I tried turning off the TV and the satellite receiver and the noise persists. I have already power cycled the Playbar, and that was over 20 minutes ago, so the diagnostic I have just grabbed was 3737572.

3782396 any ideas why I am getting a really high pitched noise from the my play bar. Received today

Hi,

Thank you for those diagnostics. You can try a Factory Reset on those units, and if you're still having that same high pitched noise, can you give us a call? We'd like to take a closer look at those PLAYBARs. 

Thanks

Hi, I spoke to someone from sonos and I am sending it back to the retailer john Lewis. I reset it but still have a pitch noise when the power supply is connected. I can be reached on 07984530471 if you want the playbar before I return it

Hi, I spoke to someone from sonos and I am sending it back to the retailer john Lewis. I reset it but still have a pitch noise when the power supply is connected. I can be reached on 07984530471 if you want the playbar before I return it
Thanks for the offer, you can return it through them. Let us know if you have any trouble with the replacement.

I'm going to remove this post for you so your phone number isn't publicly available.

Hi, I've just purchased a new play bar and have the very same high pictched noise coming from what would appear to be the left side of the play bar... I'm gutted as for £599 I expected more 😢... Just out of hospital and can't drive so having to wait to get a lift to go back to john lewis with it to get a replacement... Sounds like a common fault... I've powered down, left over night, unattached and reattached the optical lead and still no joy.. Only equipment I have on is the television which is on a stand behind the play bar but even with TV off the play bar still emits this pitched noise... Come on sonos, it was you or Bose and I chose sonos... Don't make me regret my decision 😢

The sound doesn't go away and john Lewis couldn't work their computer so couldn't send me a replacement. In the end I had to get the tube into oxford circus with it in tow and swap. Rubbish. Awesome sound now though