misterm

Thanks Norman I think I'll just go ahead and order a new battery. I have no means of charging it pre installation, would I be safe just plonking the new battery in? Or is there anything I need to consider before hand? D

Thanks for the reply. It was installed about 4 years ago, just before we moved in. Would the dim light on the mini panel suggest a faulty battery? Would my passcode being the same and the alarm sounding with mains power off mean the battery is ok? D

Hi I have a Honeywell Accenta/optima ADE Gen4 installed in my home. The system was already installed when we moved in. I have the bell on the outside of of the garage with 1 display panel and Accenta mini panel on the wall inside the garage. The 2nd display panel is under the stairs in the house, with a sonit 1 speaker above. Last night the alarm sounded twice, about 2 hours apart. Each time I checked around the house, nothing to report. I didn't think of checking the log until this morning. The alarm usually sounds when we have a brief power cut, so before I checked the log, I tried turning the power off and on at the fuse box to double check that the alarm does sound with mains power off. The alarm sounded, so I went to reset it, but the display on each panel is lit but displaying a line of black blocks. While I can reset the alarm and perform other functions on the display panel, I can't see any feedback displayed, other than the blocks in the photo. I tried turning the mains power off and on again, with the same result. The display was working fine before the first time I tried turning the mains off. The red power light is lit on the Accenta mini panel in the garage, although it is quite dim, it is on. I have read other threads on similar problems, but nt this exact one. Any ideas would be much appreciated. Thanks D