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NFPA 72-2025
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MEMORY FAULTtrouble

Notifier NFW2-100: MEMORY FAULT

Notifier NFW2-100·0 views·0 field notes

What This Code Means

Internal system memory error.

Common Causes

  • 1EEPROM failure
  • 2Corrupted site database
  • 3Processor malfunction

Resolution Steps

Attempt to re-download the site program. If the fault persists, the main circuit board may need replacement.

Manual References(1)

1notifierNFW2-100Installation2005p. 18, 127, 107, 109, 126, 6, 150, 151, 104, 106Open

Field Notes

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Related Codes

AC_FAILThe control panel has lost primary AC power.TEST FIndicates a detector has failed the automatic test operation of its sensing chamber and electronics.Active SupervisoryA condition indicating that a monitored system component is in an off-normal state, such as a sprinkler valve tamper condition.NAC 1 FAULTA fault condition (open or short) on Notification Appliance Circuit 1.COMM FAULT 1The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.

Related Questions

How does the NFW2-100 ground fault detection work?What battery size does the NFW2-100 require, and how do I silence a battery trouble condition after replacement?What batteries does the NFS-320 use, and when is an external battery box required?
All NFW2-100 trouble codesNFW2-100 panel page
Common Categories
System TroubleSupervisoryGround FaultNACCommunicationPowerDeviceNetwork
Troubleshooting Tip

When diagnosing codes, always check the event history log first. Many trouble conditions are intermittent and tied to environmental factors like temperature or moisture.

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