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Silent Knight
5820xl
Phone Line 1 Trouble Detected

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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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Phone line 1 trouble detected: 5820XL Trouble Code | Fire Alarm Resource Center

Phone line 1 trouble detected

trouble

Silent Knight 5820XL

62 views·0 field notes

What This Code Means

The panel has detected a failure or loss of voltage on telephone line 1.

Common Causes

1Disconnected phone line
2Loss of voltage from telco
3Faulty phone line monitoring circuit

Resolution Steps

Check the physical connection of phone line 1. Verify the line has dial tone. Ensure the RJ31X jack is wired correctly.

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.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.System Power (Flashes)The panel has lost primary AC power and is running on battery backup.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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