Quote:
Originally Posted by Meirschwartz
in that case, the alarm horn will be a good place to start.
disconnect the horn and use a volt meter to check if you have 12V between the two wires when the alarm is triggered
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Yes it has 12.5-13V...However it also has 10.25V constant without the alarm set or with it set and not tripped. I pulled the horn and did a ohms test on it. There is 127 ohms between the terminals and no continuity from either terminal to the casing, which tells me there is not a short to the casing. Question is.... Should there be resistance between the terminals and how much.....or should it have continuity between the terminals? I have no idea about horns. I would expect there to be a winding of some kind inside, which should show some kind of resistance if I am correct in my thinking.