E31

Indoor/Outdoor Unit Address Setting Error (Duplication)

Mitsubishi Electric · Mitsubishi FR-D700 Inverter

What does E31 mean?

There is a duplication of an indoor unit address number within the U00-U47 range, or an outdoor unit address setting error has occurred. This conflict prevents proper system communication and unit identification.

Source: Mitsubishi FR-D700 Inverter

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