September 17, 201015 yr Hi A friend of mine has bought a shop with a g3 alarm panel. Nobody knows the codes to use the alarm. I have tried various engineer codes but none work. Is there a way round this or is it a new main panel job. Thanks
September 18, 201015 yr You will require the engineers manual ( search the web , its readily available), it shows you how to default the panel to its " factory state" , resetting the codes to default , and also how to reprogram it to your requirements.
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