Possibly the battery back up isnt working and it has reverted to factory settings.There should be a power fused spur switch at the side of the clock which will cut nthe boiler off if you dont want it on.Turn that off and then back on and see if the clock behaves itself,otherwise the clocks electronics may have shot.I think these are fairly easy to change as you just undo the 2 grubscrews at either end underneath and the module just lifts off leaving the wiring in situ.Get exactly the same clock and just replace the module if need be.
Tony S
February 2009
howtomendit.com for free repair help, information and advice.
