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- 25 Oct 2024
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We often have power cuts and I often have to reset our alarm as the back up batteries run out when we get all day cuts as per the last one. Now the main box with battery seems dead as no green power light. I've tested for mains 240v in which is live but if I take the transformer plug off the circuit board and test that what voltage should it be DC? It doesn't seem to have much voltage giving a tiny flicker with meter set at 9v? Does this mean the power cut has killed the alarm transformer? Thanks