synctime Posted May 24, 2016 Share Posted May 24, 2016 I've moved into a new house, and there is a Gardtec 500 series alarm panel installed. The LED display is flickering, and the previous owner said it could be the battery inside that's old and he has lost the reset code. When I disabled the mains, and removed the battery, the external alarm went active and only disabled when I reconnect the battery. Am I right that the external alarm has a battery inside, and it becomes active when the controller is disabled as a tamper proof feature? I am worried when the battery in the alarm panel dies completely, the external alarm would be active continuously and I would not be able to disable it. I have the following options : - Call an alarm engineer to replace the controller - Replace the battery myself, but without the reset/engineer code, the panel would still be inoperative Any advise would be helpful. Quote Link to comment Share on other sites More sharing options...
Rulland Posted May 24, 2016 Share Posted May 24, 2016 As you've already been inside the panel to disconnect the battery, and I assume you managed to reset the system, it obviously isn't set up for engineer reset on tamper. If that's the case change the battery, because at a minimum it requires replacing if it hasn't been replaced in the last 4 years or so, and see if it makes a difference, Imho though it possibly won't, but, heh, worth a punt tbh. Quote Link to comment Share on other sites More sharing options...
synctime Posted May 24, 2016 Author Share Posted May 24, 2016 I don't know how to reset the system. It's all new to me. What puzzels me is that the external alarm is active even when neither mains or battery was present. Where does the alarm on the external wall gets its power from? I guess there must be a battery inside the unit. Quote Link to comment Share on other sites More sharing options...
Rulland Posted May 24, 2016 Share Posted May 24, 2016 Correct. Quote Link to comment Share on other sites More sharing options...
synctime Posted May 25, 2016 Author Share Posted May 25, 2016 Thanks. Its there any way to disable that external wall alarm? You can send me an email. Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 25, 2016 Share Posted May 25, 2016 Are you doing all of this just because the display is flickering or other reason? Quote Link to comment Share on other sites More sharing options...
synctime Posted May 25, 2016 Author Share Posted May 25, 2016 The previous owner lost the codes, so the alarm doesn't work anymore. The display is flickering meaningless segments. It's obviously faulty. I'll have to get the control panel changed. Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 25, 2016 Share Posted May 25, 2016 In that case leave it as is until your ready to change it or get someone in Quote Link to comment Share on other sites More sharing options...
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