bad type fault: EST4 Trouble Code | Fire Alarm Resource Center

What This Code Means

This condition occurs when a substituted device is a different model than the suspect device but is preprogrammed with the same device address.

Common Causes

1Substituted device is a different model than the suspect device
2Device preprogrammed with the same address as a different model
3Incorrect device model installed during replacement

Resolution Steps

To remove the fault, you must accept the model of the known good device using the 4-CU or replace the substituted device with a model that matches the suspect device.

Manual References(2)

1edwards estEST4Installation2019p. 234, 149, 152, 233, 148 +13Open

2edwards estEST4 User GuideUser Guide2019p. 54, 7, 6Open

Related Codes

TroubleGeneral fault within the system hardware or wiring that prevents normal operation.BuildingControlled building equipment such as dampers, fans, or temperature controls are not operating correctly.Ground faultThe system detects a low resistance path (approximately 10 kΩ or less) between a circuit conductor and earth ground, or voltages outside the range of 12.3 VDC to 16.8 VDC during testing.A short is detected on the loopA shorted circuit has been detected on the Signature loop controller (SLC) wiring, which typically reports a trouble condition on all devices on that circuit.SUPERVISORYThe control unit enters the supervisory state when a point signals a supervisory condition, such as a valve tamper switch activation or a system-level supervision fault.

Edwards EST EST4

What This Code Means

Common Causes

Resolution Steps

Manual References(2)

Field Notes

Related Codes

Related Questions