An Extra Device trouble indicates the panel has detected a device on the IDNet loop at an address that is not configured in the system programming (Page 13, 17) [1].
This typically occurs when a device is addressed incorrectly, not added to the program, or left at the factory default address of 255 (Page 17) [1].
Only one extra device is displayed per loop at a time; resolving one may reveal another (Page 17) [1].
Identify the address by scrolling to the Next event or checking the Historical Fault Log (Page 17) [1].
Check for No Answer faults, as an incorrectly addressed device often causes a "No Answer" at its intended address and an "Extra Device" at its current address (Page 13, 17) [1].
Verify the device's DIP switch settings match the site program (Page 19) [1].
Ensure the sensor head is properly installed; a missing head on a base can trigger this fault (Page 19) [1].
If the device cannot be found, disconnect the loop at halfway points until the fault clears to isolate the location (Page 12) [1].
