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Daikin · Heat pumps · Daikin Altherma 3 R F (split heat pump, R32)

HJ-10Water pressure sensor abnormality

Name in the manufacturer's documentation (service manual): Water pressure sensor abnormality[1]

In plain words (editorial)

The water pressure sensor reports an abnormal value. The manual names a main water supply or pressure outside the expected range, a leak in the water circuit, a faulty water pressure sensor or hydro PCB.

When to call a service technician: Check the system pressure and look for visible leaks; then 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] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 255 official manufacturer document quote verified HJ-10 Water pressure sensor abnormality
  2. [2] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified main water supply or pressure outside expected range.
  3. [3] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified leak in the water circuit.
  4. [4] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified faulty water pressure sensor.
  5. [5] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified faulty hydro pcb.
  6. [6] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified check the main water supply and pressure of the installation.
  7. [7] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified check for leaks in the water circuit.
  8. [8] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified perform a check of the water pressure sensor.
  9. [9] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 52 manufacturer document – copy from a distributor quote verified perform a check of the hydro pcb.