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Silent Knight
5820xl
Slc Class A Supervision Lost

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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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SLC Class A supervision lost: 5820XL Trouble Code | Fire Alarm Resource Center

SLC Class A supervision lost

trouble

Silent Knight 5820XL

76 views·0 field notes

What This Code Means

The panel has lost the return path for a Class A SLC loop configuration.

Common Causes

1Break in SLC wiring
2Loose connection at terminal block

Resolution Steps

Check for open circuits in the SLC loop wiring and ensure all connections at the panel and devices are secure.

Manual References(4)

1silent knight5820XLInstallation2007Open

2silent knight5820XLInstallation2013p. 206Open

3silent knight5820XLDatasheet2006Open

Field Notes

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Related Codes

Detector troubleA smoke or heat detector is reporting a fault condition to the panel.System Power (Flashes)The panel has lost primary AC power and is running on battery backup.Water flow switch troubleA fault has been detected in the wiring or switch of a water flow initiation circuit.BATTERY LOWThe system has detected that the standby battery voltage is below the acceptable threshold, indicating the batteries are depleted or failing to hold a charge.GROUND FAULTAn earth ground fault occurs when the panel senses an unexpected flow of current from one or more of its terminals to the earth connection (Terminal 2).

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