DISABL: NFS2-640 Trouble Code | Fire Alarm Resource Center

What This Code Means

A point (detector, module, or zone) has been manually disabled by a user.

Common Causes

1User manually disabled a device or zone for maintenance
2Testing or bypass of specific system components
3Preventing nuisance alarms during construction or service

Resolution Steps

Identify the device or zone that is disabled using the address and descriptor on the LCD display. If the maintenance or testing is complete, re-enable the point through the panel's status change or programming menu to return the system to a normal state.

Manual References(1)

1notifierNFS2-640Datasheet2017Open

Related Codes

INVREPThe device has returned a response to the panel that the panel did not expect.INST ON L1No devices are installed on the system.LO VALThe detector chamber reading is too low, or the detector is not operating properly. In CLIP mode, this may also indicate a failure of the thermistors, CO element, or infra-red element, or a freeze warning.PREALMThe control panel activates a Pre-Alarm Warning when a detector exceeds its programmed Pre-Alarm Alert or Action level, providing an early warning of incipient or potential fire conditions.TROUBLThe system enters System Trouble mode when the control panel detects an electrical fault or a trouble condition on a supervised circuit or module.

Notifier NFS2-640

What This Code Means

Common Causes

Resolution Steps

Manual References(1)

Field Notes

Related Codes

Related Questions