Control Panel clock stopped working (1 Viewer)

[RogueStorm]

We are currently 50 plus days into a 90 day tour of southern Europe and my panel clock has decided to play up. The digital clock on my control panel has stopped working and now persistently shows a two in the reader. The two may be a code similar to that shown by my gas boiler when it goes tits up but I can't find ant reference to it in the books. I wouldn't mind but the clock is a good indication when I wake in the middle of the night. I've pushed all the buttons, sometimes two at a time but nothing happens. Any help appreciated.

 

[9526]

Really wild guess this, but is the clock powered by its own internal battery?

 

[RogueStorm]

I'll have a look but the two is very bright so I'd say no but worth a shout.
Thanks.