While you wait for answers, we may have found some information which could help you.
Click here for We Stop Making Noise
Gardtec 800 with a battery/fuse failure?
Could anyone help me with gardtec 360/580 anti-code reset?
where can i buy a replacement battery?
Gardtec 300/500 series- key pad shows 1u. ?
Stuck button on gardtec 500?
how can I disable a Gardtec series 300 alarm?