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Hi, I have an Accenta 8 alarm that was installed by the previous house owners. We haven't used the alarm in years and recently when we had a couple of power cuts the alarm sounded (it wasn't set to be on). When the power returned the alarm stoped but the keypad isn't operating properly - their is light behind the number keys but neither the 'power' nor the 'day' leds are lit up. I have read around this (and other) forums to try to work out what to do and it sounds like it may be that the battery in the main box is faulty and could possibly have damaged other parts of the system? The alarm hasn't been serviced in many years. One thing I have read to try is to 'power down and back up' the system to see if the power / day leds light again. Is this something worth trying? If so, do I have to get into the alarm box or can I just turn off the power from our RCD / fuse box to the alarm and wait a while then turn it back on? If I want to replace the battery what do I need to do? Presumably turn off the power (again at the RCD / fuse box?) and open the main alarm box? I assume that will set off the tamper alarm? How do I silence that alarm if the keypad isn't working? Sorry if these are daft questions! The basic point is, the alarm sounds during a power cut (even though it's unset) and the keypad doesn't work so it can't be silenced. The keypad isn't showing the day / power leds lit even when mains power is restored. Any advice would be greatly appreciated - I think our neighbours are getting a little fed up with the alarm going off during power cuts! Many thanks, Martin