E46

Address Setting Conflict

Mitsubishi Electric · R410A Systems

What does E46 mean?

A conflict exists in the address settings of units on the network. This specifically occurs when a combination of automatic, manual, or remote control addressing modes are simultaneously used on one network, disrupting communication.

Repair Steps

  1. 1

    Review all indoor and outdoor unit address settings to ensure a consistent addressing method (e.g., all manual, or all auto where supported).

  2. 2

    Verify that there are no duplicate addresses assigned to any unit on the network.

  3. 3

    Refer to the system installation manual for proper addressing procedures for the specific system configuration.

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Verified technical data. Last updated: March 2026
Source: Mitsubishi Electric R410A Systems