Hi

Are you sure it is really random? I suggest to write down time and starting source whenever the BM5500 starts because of the tiny DJ at least for some weeks. My suggestions are:

• Programmed timers (by mistake or by previous owners), you need a MCP5500 or BL5000 to check
• Sometimes our neighbours also have B&O remotes which are well known for their long distance impact, check by closing the blinds
• One of your own remotes or MCP is running crazy, check by hiding in closed box
• Bad cabling of Multiroom-system, check by disconnecting Multiroom
• BM5500 problem, search for tiny DJ will be difficult

Good luck

David

Thanks for your options.

• Programmed timers (by mistake or by previous owners), you need a MCP5500 or BL5000 to check. This was checked
• Sometimes our neighbours also have B&O remotes which are well known for their long distance impact, check by closing the blinds. Blinds were closed for 2 weeks and the beomaster 5500 was turned off, during my holliday. I came back and the beomaster 5500 was on.
• One of your own remotes or MCP is running crazy, check by hiding in closed box. I will do.
• Bad cabling of Multiroom-system, check by disconnecting Multiroo. Not present
• BM5500 problem, search for tiny DJ will be difficult. I know ;(

Low energy light bulbs can trigger remote commands up to a minute after being switched on. I have this trouble with my Beocenter 7002.  Have you covered the sensor to eliminate external causes?

    John.