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E31

E31 - Duplicate indoor unit address or outdoor unit address setting error

MHI · R410A Systems

Was bedeutet E31 ?

This error occurs when an indoor unit has a duplicated address number (U00-U47) or there is an error in the outdoor unit's address setting.

Häufige Ursachen

  • Two or more indoor units have the same address assigned in a multi-split system.
  • The outdoor unit's address is set incorrectly.
  • Conflict in address settings.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Turn off the main power to all units in the AC system at the circuit breaker.

  2. 2

    Consult your installation manual to verify the correct and unique address for each indoor unit (U00-U47).

  3. 3

    Check and ensure the outdoor unit's address is set correctly according to the system configuration.

  4. 4

    Restore power after correcting any address conflicts or errors. Contact a technician if unsure about addressing.

Alle Codes in diesem Handbuch durchsuchen (58)
Verifizierte technische Daten. Zuletzt aktualisiert: April 2026

Verwandte Fehlercodes

E0E0 - Transmitting/receiving signal error in indoor unitE12E12 - Address setting conflict or auto address failureE14E14 - 3 flashes - Master/slave system wiring or SW settings error
Quelle: MHI R410A Systems
Open Manual (Page 3)Mehr Codes in diesem Handbuch suchen