I've got one of these with a dead battery. Every time the power glitches, even for a few seconds, the alarm goes haywire, registers a tamper fault and the sounder goes off. Even though there's enough power to run the sounder, the keypad goes haywire and you can't reset the alarm until the power comes back.

Essentially, all I want to know is:

1. Do I need some sort of code to disable the alarm before I open the panel? Or is there anyway to stop the alarm sounding if I turn the power off?

2. Will the alarm retain it's programming when the old battery is disconnected?

3. Do I need an engineering code to reset the alarm once the new battery is installed?

Thanks.

If you open the lid enter your user code replace batt like for like you can reset it with your code once the lid is replaced. Best leave them power on when you do this but be careful.

Edited October 24, 200718 yr by daveboy

keep the battery change the panel

Nightmere panels, prone to be a real pain in the bum and more trouble than they're worth hence the above very wise comment, but follow ad Dave says and should be all sorted, Maplin electronics sell the batteries to public make sure you get 12v versions as they do a 6v that looks the same, always fit the same aH size or a higher aH if ou can and it will fit inside the panel, the higher the aH of the battery the longer it will last if there is a power cut to put it nice and simple

Thanks all.

The old 2 Ah battery inside was dead as a doornail - 8 Volts on it, no wonder it didn't even last 10 seconds.

I've put a 7 Ah in, seeing as it was only about