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Nfs2 640
Lo Temp
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Nfs2 640
Lo Temp
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LO TEMP: NFS2-640 Trouble Code | Fire Alarm Resource Center
LO TEMP
trouble
Notifier NFS2-640
59 views
What This Code Means
The temperature read by a Heat+ or Acclimate™+ detector is too low.
Common Causes
1
Ambient temperature in the area of the detector has dropped below the threshold (typically 40°F ± 5°F)
2
Inadequate heating in the room or area where the detector is installed
Resolution Steps
Raise the heat in the area of the detector.
Manual References
(3)
1
notifier
NFS2-640
Datasheet
2008
Open
2
notifier
NFS2-640
Operations
2013
p. 72
Open
3
notifier
NFS2-640
Datasheet
2017
Open
Getting LO TEMP on your NFS2-640?
Ask TroubleShooter AI for help
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Field Notes
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Related Codes
INVREP
The device has returned a response to the panel that the panel did not expect.
LO VAL
The 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.
INST ON L1
No devices are installed on the system.
NETWORK FAIL PORT x
Communication lost between NCM Port x and corresponding node.
TROUBL
The system enters System Trouble mode when the control panel detects an electrical fault or a trouble condition on a supervised circuit or module.
Related Questions
What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?
How do I troubleshoot a ground fault on the NFS2-640 SLC loop?
What are the NAC circuit specifications for the NFS2-640, and when do I need an external NAC booster panel?
LO TEMP
trouble
Notifier NFS2-640
59 views
What This Code Means
The temperature read by a Heat+ or Acclimate™+ detector is too low.
Common Causes
1
Ambient temperature in the area of the detector has dropped below the threshold (typically 40°F ± 5°F)
2
Inadequate heating in the room or area where the detector is installed
Resolution Steps
Raise the heat in the area of the detector.
Manual References
(3)
1
notifier
NFS2-640
Datasheet
2008
Open
2
notifier
NFS2-640
Operations
2013
p. 72
Open
3
notifier
NFS2-640
Datasheet
2017
Open
Getting LO TEMP on your NFS2-640?
Ask TroubleShooter AI for help
→
Field Notes
Loading field notes...
Sign in
to share a field note
Related Codes
INVREP
The device has returned a response to the panel that the panel did not expect.
LO VAL
The 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.
INST ON L1
No devices are installed on the system.
NETWORK FAIL PORT x
Communication lost between NCM Port x and corresponding node.
TROUBL
The system enters System Trouble mode when the control panel detects an electrical fault or a trouble condition on a supervised circuit or module.
Related Questions
What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?
How do I troubleshoot a ground fault on the NFS2-640 SLC loop?
What are the NAC circuit specifications for the NFS2-640, and when do I need an external NAC booster panel?
