seems like theres a fault with zone 3
walk past the sensor zone 3 and see if the sensor lights up
if it does its obviously working , open the main panel(the alarm will sound enter your code and press reset ) and look for zone 3 its possible z3 and check the wires are tightley in the two terminals if they are thats fine but if theres still a problem open the sensor the alarm may go off again do the same procedure and check the wires are tightley fitted if it works great !!
if senspr is broke not working at all open the main panel and look for aux check no black and red wires have come out of the terminals if not you have a faulty sensor and you will need to replace if it does leed to that then get back to me and i can help you with a sensor if you replace the broken one
let me know how it goes for now
Death
Death
March 2010