B&W Mk2 Restarting it self

i have a b&w mk2 with logic the screen keeps restarting it self at random times and asking for the time and date to be reprogrammed the system has been running for over a year with no problems the only change i have don is i have added 2 new schedules for watering with a little logic to stop watering if it has rained for 24 hrs only very basic logic i cant seemed to find any other reason why it is restarting

 

Loose power connection maybe

Maybe the power connection was disturbed when you uploaded your changes?
Might be something as simple as a loose C-Bus connection

 

If the re-starting issue has only occurred since making those changes how about un-doing them and testing to see if the problem goes away? It may be useful in helping to track down the exact issue.

If you have another screen handy, putting the same project into another screen is also a good idea.