Excellent video - ruclips.net/video/5q20QsNB0JA/видео.html However, what if the false alarm is intermittent, every other week? In this case the voltage test will show the sensor as OK, but the false alarm may still appear. Do sensors have an expected life span and should be replaced after that? Thanks.
![KSI - Dirty [Official Visualiser]](http://i.ytimg.com/vi/VoDh1h1dPUE/mqdefault.jpg)
Thanks for this. You saved me getting in a technician.
What kind of magnetic switch did you use? Normally closed or open?
Normally closed
Excellent video - ruclips.net/video/5q20QsNB0JA/видео.html
However, what if the false alarm is intermittent, every other week? In this case the voltage test will show the sensor as OK, but the false alarm may still appear. Do sensors have an expected life span and should be replaced after that? Thanks.