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Load deficiencytrouble

Edwards EST EST4: Load deficiency

Edwards EST EST4·1 view·0 field notes

What This Code Means

The power supply has detected that the batteries cannot support the required system load.

Common Causes

  • 1Aged or depleted batteries
  • 2Bad battery cell
  • 3Loose battery terminal connections

Resolution Steps

Perform a battery load test. If the batteries fail to hold a charge under load, replace them with new units of the same rating.

Manual References(2)

Field Notes

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Related Codes

Shorted conditionA short circuit has been detected on the IDC or NAC circuit wiring.Low impedanceThe circuit resistance is lower than expected but not a direct short.Open circuitThe initiating or notification circuit has a break in the wiring or a missing end-of-line resistor.Network CPU failureThe main processor for a network node has failed, causing the system to enter degraded mode.Power offThe system has lost primary AC power and is running on battery backup.

Related Questions

What are the battery sizing requirements for the EST4, and what is the replacement procedure?How many addressable devices can an EST3 node support, and what cards provide the SLC loops?How do I decode an EST3 trouble address like '03030681'?
All EST4 trouble codesEST4 panel page