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Hi Guys, I've just fitted the new battery by powering mains first, giving F3 steady then connecting battery and resetting giving F4 flashing. Subsequent resets with # or code + # result in F4 flashing and still no reaction from PIR's. Anything else I can try or do I say bye bye to a slice of...

Thanks to all; I'll try a new battery later today if I can get one locally. A bit surprised it's that, since all was fine until we had a local power voltage drop which only lasted a few hours. I don't think we had a total cut but dimmers and fluorescents weren't working. Anyway thanks again...

Hi, I hope someone can help. We recently had a power cut and our alarm sounded some time after the power came back on. On reset, the keypad showed F3 - low voltage and F4 Battery and the diode on the remote keypad lights at first but then goes out. Subsequent attempts seem to give random...