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E31

Indoor/Outdoor Unit Address Setting Error (Duplication)

Mitsubishi Electric · FR-D700 Inverter

Was bedeutet E31 ?

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.

Häufige Ursachen

  • Multiple indoor or outdoor units assigned the same address.
  • Address setting switches (DIP switches) on multiple units are set identically.
  • Auto-addressing mechanism failed to resolve address conflicts.
  • Incorrect address setting on the master controller.
  • Duplicate unit IDs in the system configuration.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Verify the address settings of all indoor units, ensuring each has a unique address within the U00-U47 range.

  2. 2

    Check the outdoor unit address setting for correctness according to system design.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Mitsubishi Electric FR-D700 Inverter