High pitch playbar noise

Likewise, diagnostics 4445843. New speaker arrived yesterday and been making the noise from the start. Have had to unplug it. What do you recommend?
Hi Tom, sorry I missed this post. As suggested above, if you have a PLAYBAR emitting a high pitched noise, or really any Sonos component making sound it shouldn't, you're best to give us a call. A technician can get you all sorted out, and help replace the unit if needed.

Likewise, diagnostics 4445843. New speaker arrived yesterday and been making the noise from the start. Have had to unplug it. What do you recommend?
No problem Ryan, all sorted with a replacement unit now.

As this has now become the official playbar high pitch noise issue thread, could we start sharing some troubleshooting tips? The only advice coming from Sonos is to call the helpline. Given this is an issue a number of people have faced over the past year or two, are there any emerging conclusions about what the problem is related to?

The reports are all very similar. Like me, the issue seems to start when the speakers are powered up (either from new, or when removed from the mains for a long period - as in my current situation). It happened with my playbar when I first bought it, and the noise went away after a few days. I've had it switched off for 2 weeks and now it has returned. Rather than wait for it to subside, is there anything I can try?

Specifically, is the problem to do with:
a) interference from other electrical equipment (power or data leads)
b) speaker components warming up/settling in
c) amplifier or DAC problem
d) other.

I do appreciate the prompt and efficient support Sonos provide, but it would be good to have a discussion of the issue, and not just a referral to the helpline.

As this has now become the official playbar high pitch noise issue thread, could we start sharing some troubleshooting tips? The only advice coming from Sonos is to call the helpline. Given this is an issue a number of people have faced over the past year or two, are there any emerging conclusions about what the problem is related to?

The reports are all very similar. Like me, the issue seems to start when the speakers are powered up (either from new, or when removed from the mains for a long period - as in my current situation). It happened with my playbar when I first bought it, and the noise went away after a few days. I've had it switched off for 2 weeks and now it has returned. Rather than wait for it to subside, is there anything I can try?

Specifically, is the problem to do with:
a) interference from other electrical equipment (power or data leads)
b) speaker components warming up/settling in
c) amplifier or DAC problem
d) other.

I do appreciate the prompt and efficient support Sonos provide, but it would be good to have a discussion of the issue, and not just a referral to the helpline.
Hi Dave,

In general this is likely caused by hardware trouble on the PLAYBAR itself, so the troubleshooting often times comes down to factory resetting to make sure there isn't anything settings wise getting in the way, and if that doesn't do it, replacing the unit. It's best to call in because a technician can run through those steps quickly, and also confirm exactly what sort of high pitch noise the PLAYBAR is making, and they can setup a replacement if needed.

Sonos components aren't repaired in field, and we don't do replacements for parts or provide repairs for units that have been opened. So for hardware trouble such as a bad amplifier, give us a call and we'll help replace the unit.

Hi - what is the remedy when you call?  replacement?

As this has now become the official playbar high pitch noise issue thread, could we start sharing some troubleshooting tips? The only advice coming from Sonos is to call the helpline. Given this is an issue a number of people have faced over the past year or two, are there any emerging conclusions about what the problem is related to?

The reports are all very similar. Like me, the issue seems to start when the speakers are powered up (either from new, or when removed from the mains for a long period - as in my current situation). It happened with my playbar when I first bought it, and the noise went away after a few days. I've had it switched off for 2 weeks and now it has returned. Rather than wait for it to subside, is there anything I can try?

Specifically, is the problem to do with:
a) interference from other electrical equipment (power or data leads)
b) speaker components warming up/settling in
c) amplifier or DAC problem
d) other.

I do appreciate the prompt and efficient support Sonos provide, but it would be good to have a discussion of the issue, and not just a referral to the helpline.
Thanks Ryan, appreciate the clear response. I'm pleased to say the whine has now disappeared, as I live in Thailand so getting a replacement from Singapore would be tricky.

Wish I had read this first... Just got mine home and not impressed, makes all sorts of noises... Powering up, down, light flashing! Just got two 1's, sub, one 5 and a playbar... Think how disappointed I am. Sonos, can I return the lot and get a refund ?

Wish I had read this first... Just got mine home and not impressed, makes all sorts of noises... Powering up, down, light flashing! Just got two 1's, sub, one 5 and a playbar... Think how disappointed I am. Sonos, can I return the lot and get a refund ?
"All sorts of noises" doesn't sound particularly good, but it's hard to say for sure what's happening there. The noise some of the users in here are experiencing would be very consistent. I'd recommend giving us a call so a technician can help you look closer at the system, and hey you all sorted out.

In my case, whilst it was very disappointing to have the noise coming from such an expensive piece of kit, the support from the Sonos team to get it resolved was very good.

Just reinstalled my system after not using it for 3 months, and now it's making the noise. How many people who have reset the system have fixed the problem?