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Mitsubishi Electric · Heat pumps · Mitsubishi Electric Ecodan FTC7 controller (PUZ-WM/WZ, PUHZ-SW)

J1–J8Communication failure between wireless receiver and wireless remote controller

Name in the manufacturer's documentation (service manual): Communication failure between wireless receiver and wireless remote controller[1]

In plain words (editorial)

Communication failure between the wireless receiver and the wireless remote controller. The manual says to check that the remote controller's battery is not flat and that the receiver and controller are paired.

When to call a service technician: If a new battery and re-pairing do not help, contact your installer.

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.

  1. [1] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 33 official manufacturer document quote verified J1 - J8 Communication failure between wireless receiver and wireless remote controller
  2. [2] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 33 official manufacturer document quote verified check wireless remote controller's battery is not flat.
  3. [3] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 33 official manufacturer document quote verified check the pairing between wireless receiver to wireless remote controller.
  4. [4] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 33 official manufacturer document quote verified test the wireless communication.