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Dirty devices > 20%
maintenance

Edwards EST EST3

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What This Code Means

A smoke detector is beginning to accumulate dust and should be noted for future maintenance.

Common Causes

  • 1Normal environmental dust
  • 2Aging sensor

Resolution Steps

Schedule the identified smoke detector for cleaning or replacement during the next scheduled maintenance cycle.

Manual References(2)

Field Notes

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Related Codes

TROUBLEA general fault condition exists within the system, indicating the alarm system may not function correctly.ALARMThe system has detected a fire or other life-threatening emergency condition.CPU FAILThe central processing unit has detected an internal processor failure.Active Test TroubleA trouble is reported if devices are left in an active state after canceling a service group test.GND FAULTThe SFS1-CPU module has detected an unintended connection between a system circuit and the earth ground.

Related Questions

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All EST3 trouble codesEST3 panel page