how can I fix my securit 800L?

while on holiday there was a power cut and now cannot program the panel even though the mains and day lights seem to be in order.
roy feris, June 2013


done
the standby battery is shot u need to replace it,bet u never had the system serviced,remove mains power before you open the control unit,(the big white box )

gts, June 2013
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