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

How to read and reset an error on the Ecodan (FTC7) controller

Summary (editorial)

The controller shows the code with unit, address and a phone number. The manual describes resetting with the F4 (RESET) and F3 (Yes) buttons; do not press buttons with sharp objects.

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

From the manufacturer's documentation (English source wording, with page)

  1. The code, unit, address, and telephone number are displayed[1]
  2. Press F4 (RESET) and F3 (Yes)[2]
  3. To cancel error codes, switch system off[3]
  4. Do not use sharp objects on buttons[4]
  5. U*/F*/A*: refer to outdoor unit service manual[5]

⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.

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 The code, unit, address, and telephone number are displayed.
  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 Press the F4 (RESET) button, and the F3 (Yes) button to reset the current error.
  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 To cancel error codes, please switch system off
  4. [4] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 34 official manufacturer document quote verified Do not use any sharp object to push the buttons
  5. [5] Mitsubishi Electric Ecodan FTC7 PAC-IF081B-E / PAC-IF082B-E / PAC-IF083B-E – Installation Manual (DG79H200H02) , p. 33 official manufacturer document quote verified Refer to outdoor unit service manual.