Ground fault indication in Fire alarm panel

This is with reference to Notifier panel NFS 640 (fire alarm system)

After commitioning the panel i am getting

1) Trouble in the system
2) Ground fault in loop 1
3) Programm corrupted

can some boby help me to solve above problems.

Regards,
Prasanna

You will need to dissconnect each and every device on this system one at a time until the Ground fault clears. Then once you find the grounded device you must fix or replace it.


Thanks Bob