Oversetter...
F9

Outdoor Unit Protection Device Connector Open

Mitsubishi Electric · PAR-21MAA MA Remote Controller

Hva betyr F9 ?

A protection device connector on the outdoor unit is open, preventing proper system operation and communication. This leads to the remote controller displaying 'PLEASE WAIT'. The outdoor board LED will blink green once and red twice alternately after system startup.

Vanlige årsaker

  • Open circuit detected at the outdoor unit's protection device connector.
  • Loose or disconnected wiring at the protection device terminal.
  • Faulty protection device requiring replacement.
  • Internal wiring break within the outdoor unit to the protection device.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Locate and visually inspect all protection device connectors on the outdoor unit for disconnections or looseness.

  2. 2

    Securely reconnect any identified open protection device connectors on the outdoor unit.

Se alle koder i denne manualen (26)
Verifisert teknisk data. Sist oppdatert: March 2026

Relaterte feilkoder

Kilde: Mitsubishi Electric PAR-21MAA MA Remote Controller