Resource Center Tools

Sign In

Sign In

Home
Resources
Trouble Codes
Esser
Flexes
Battery Contact Resistance

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

Battery fault (excessive contact resistance): FlexES Trouble Code | Fire Alarm Resource Center

Battery fault (excessive contact resistance)

trouble

ESSER FlexES

91 views·0 field notes

What This Code Means

The system has detected excessive resistance (> 200 mOhm) at the battery terminals or cables.

Common Causes

1Loose battery terminal clamps
2Corroded battery terminals
3Damaged or poor quality battery connecting cables

Resolution Steps

Inspect and tighten battery terminal clamps; clean any corrosion from terminals and replace damaged cables.

Manual References(1)

1esserFlexES ControlInstallation2010p. 71, 3, 2, 49, 87 +4Open

Field Notes

Loading field notes...

Sign in to share a field note

Related Codes

essernet connection interruptionA break or wiring error has been detected in the essernet communication loop.Tamper contactThe tamper contact is used to monitor whether the control panel's housing has been opened and can be used to automatically deactivate components for servicing.Panel or essernet device not receiving powerA device on the essernet is not receiving power or is completely disconnected.EARTH FAULTThe system has detected an unintended connection to ground or an incorrect configuration of the earth fault detection jumpers on multiple power supply modules.Battery FaultThe FACP indicates a fault when battery resistance is too high, voltage drops below the discharging limit, or a connection/fuse issue is detected.

Related Questions

How do I reset a fault condition on the Esser FlexES panel after replacing a detector on the loop?What do the common FlexES error codes mean, such as Loop Fault, Short Circuit, and Device Not Responding?What is the procedure for performing a walk test on the FlexES panel to verify detector and module operation?

All FlexES trouble codes FlexES panel page