E12 - Auto address setting error or unit addressed at factory setting

What does E12 mean?

The system detected an issue during the auto-addressing process, or one or more units (indoor or outdoor) are still set to factory default addresses (48 or 49). Auto-addressing may not be possible on certain systems.

• One or more units addressed at factory setting (48 or 49).
• Auto address not possible on single KX2 systems.
• Problem during the automatic addressing procedure.

Click steps to track your progress.

1. 1

   Turn off the entire system's power at the circuit breaker.

2. 2

   Wait 30 seconds, then restart the system and retry auto-addressing if applicable.

3. 3

   If you are an installer, ensure all units are correctly addressed according to the system type.

4. 4

   Consult the installation manual for correct addressing procedures for your specific system.