Help! Pre amp turning on by itself.

Does it turn itself on if you plug it in?   Meaning first time it receives power at it's AC in, does it turn on?   Like a TV does if left on a switched outlet ?

If so, you may be loosing power at the conditioner for a split second.  

All I can think of is a condition like that or extraneous light of a certain wavelength. 

You can test the remote to see if a button sticks by holding the IR  in front of a Samsung Tab camera or Samsung phone camera.  Most will show the IR as a purple light when in the camera mode.   

 oddiofyl, thanks for your concern. Right now, as per Modwright, I have taken the batteries out of the remote and will see where that leads. It's only doing this about once a week, with no consistent time frame. I haven't unplugged and plugged back in as it's a PIA to get behind my rack. I did kill power to the Furman and when I powered it back up pre did not turn on. Really hoping it is something menial like old batteries in the remote  .. I will update when I get more info...

Good luck. 

My dCS Bartok comes on without fail from it's warmed up quiet state every time there's a power surge or temporary outage.

Had any surges lately?

 If anyone is interested :   following the link provided by yogiboy

I put fresh batteries in the remote and haven't had an issue yet after a month. Batteries in remote were never changed and probably at least 8 years old. Weird that old batteries could be the cause, but so far that seems to be the case. Thank you to all that offered help.