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ED

ED – Database invalid

Siemens · IQ-400 Access Control Systems

What does ED mean?

The Siemens IQ-400 system's internal database is invalid or corrupted. This requires a full reset and reconfiguration of the IQ-400 address.

Common Causes

  • Corrupted internal database.
  • System interruption during a critical data write operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a RESET on the IQ-400 panel as per the manual's instructions.

  2. 2

    Proceed to configure the IQ-400 address again after the reset.

  3. 3

    Remove the battery for 5 minutes, then reinsert it and restart the IQ-400 panel to ensure a clean boot and applied changes.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

Door Sense LED Blinks 1 time every 2 secondsDoor Sense LED Blinks once every 2 seconds – Fault: Open circuitDoor Sense LED Blinks 1 time/secondDoor Sense LED Blinks 1 time/second – Fault: Short circuitDoor Sense LED Blinks 4 times/secondDoor Sense LED Blinks 4 times/second – Circuit NOT calibrated
Source: Siemens IQ-400 Access Control Systems
Open Manual (Page 82)Search more codes in this manual