It on the xls60e fire panel ardesseble earth e fault
An "earth fault" or ground fault is a condition where one of your circuits is grounded or shorted to earth. While all fire alarm systems are normally grounded for circuit board overload protection and personal safety issues, all circuits (bell circuit, smoke detector/heat detector/pull station circuits) should be free of earth grounds. I would suggest if you are not knowledgeable enough to troubleshoot your system you should contact a security/fire alarm installation company to fix the problem. If this is not a viable solution and you want to attempt this on your own try removing each circuit from the panel one at a time. While this will certainly cause additional system troubles, when you remove the circuit causing the earth fault the condition will disappear. You will then need to check all wiring, spice points and devices on that circuit to determine the faulted location.
If you check all of these and you didn't solve the problem there is 2 or 3 zener diode as i remember, in the mother board you have to change them
There should be a ground fault light on the panel. when disconnecting the circuits find out which one removed makes the light go out and mark it . then take a multimetr set to ohms and put the black wire from the meter to somthing metal and the red wire of the meter to the red lead to the circuit. if the meter reads OL or the needle stays to the left your good . if it reads anything or the needle moves then you go to the first device unhook the out going leads and repaet the process until you see an OL. then check the wire looking from puncture spots nicks or open wire grounding to metal. take electrical tape fix it and rehook every thing back up... you should be good to go unless you have multiple grounds which means TIME CONSUMPTION...
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