Resource Center Tools

Sign In

Sign In

Home
Resources
Trouble Codes
Silent Knight
5820xl
Auxiliary Power Trouble

Resource Center

Browse

Home Questions252 Trouble Codes688 Panels24 Panel Specs24

Learn

Community

Tools

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.

Recommended SupplierSponsored

Fire Alarm Parts for Old and New Systems

Panels, detectors, modules and signals
50+ brands, current and legacy
Order by 3 pm ET, ships same day
90-day warranty on every part

Shop Fire Alarm Parts

Can't find what you need?

Resource Center

Questions Panels Trouble Codes Panel Specs NFPA 72-2025

Legal

Privacy Policy Terms of Use Disclaimer DMCA

Cookie Preferences

Company

About Us Blog Glossary Contact Us

© FACP Manuals LLC. All rights reserved.

Built by Will

Auxiliary Power Trouble: 5820XL Trouble Code | Fire Alarm Resource Center

Auxiliary Power Trouble

trouble

Silent Knight 5820XL

72 views·0 field notes

What This Code Means

A fault has been detected on the auxiliary power output circuit.

Common Causes

1Overload on aux power circuit
2Short circuit on aux power wiring

Resolution Steps

Check devices powered by the auxiliary output for shorts or excessive current draw. Verify wiring integrity.

Manual References(4)

1silent knight5820XLInstallation2007Open

2silent knight5820XLInstallation2013p. 206Open

3silent knight5820XLDatasheet2006Open

Field Notes

Loading field notes...

Sign in to share a field note

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).

Related Questions

What does 'KEY BUS TROUBLE' mean on the 5820XL and how do I resolve it?What is the difference between SK protocol and SD protocol on the 5820XL, and can they be mixed?How do I perform a walk test on the Silent Knight 5820XL?

All 5820XL trouble codes 5820XL panel page