TROUBLESHOOTING
4.a) Assume that the indicator lamp is lit with a solid green light in test a) above. Reset all connections
to their original positions. Then disconnect AR. Connect a new loop wire to AR. Connect the other end of this new loop wire somewhere at the centre of the installation.
If the indicator lamp is green, then the break is somewhere in the wire between the disconnected end to the point where the new wire is connected (thick black line in the illustration below).
In that case, move the connection for the new wire closer to the disconnected end (roughly at the middle of the suspected wire section) and check again if the indicator lamp is green.
3018-053
Continue until only a very short section of the wire remains which is the difference between a flashing blue light and a solid green light.
b)If the indicator lamp is solid green in test 3b) above, a similar test is carried out but with the
new loop wire connected to AL instead.
English - 84
