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General HVAC Solutions America Inc AIRSTAGE Infinite Support

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1 commentaire

  • Ismael Alegria Moreira

    C2.1 means: Transmission PCB error.

    You may have a bad connection or loose wire into the connector that doesn't let your indoor main pcb comunicate with the transmission communication pcb board. Check the wiring, if everything is ok, then you may have a defective transmission pcb board.

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