I have 3 sys 2 systems. Last night one unit stopped and the power light changed to red. switching off unit laving then on again, went to red again after a few minutes.
Any help appreciated.

Hello Mike Gee,

I am sorry to hear about the issue with your L1. I could recommend unplugging the power for a while and also to try plugging the system in at a different location. If the issue persists after you trying those things, then it sounds like your L1 may require service.

If you are in the U.S. or Canada, you can call us at (877) 335-2673 to arrange service.

If you are located elsewhere, you can visit http://global.bose.com for service in your region.

Thank you for posting.