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

Daikin Altherma 3: reading an error, checking water pressure and bleeding radiators safely

Summary (editorial)

The user interface shows the error and its description. The manual explains where to read the water pressure and how to bleed radiators safely.

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

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

  1. Main menu > Malfunctioning: short description and error code[1]
  2. Press in the error screen: long description[2]
  3. Understand the problem and take measures before resetting; done by licensed installer or dealer[3]
  4. Minimum water pressure to operate 1 bar[4]
  5. Maximum water pressure (space heating circuit) 3 bar[5]
  6. Pressure relief valve check: turn the red knob counterclockwise; no clacking sound → contact dealer[6]
  7. If water keeps running out, close both water inlet and outlet shut-off valves and contact dealer[7]
  8. Before purging air from heat emitters with a warning displayed: ventilate the room – refrigerant might leak into the water circuit[8]
  9. Recommended: purge air with the air purge function of the unit (installer)[9]

⚠ 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] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 253 official manufacturer document quote verified Press the left dial to open the main menu and go to Malfunctioning.
  2. [2] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 253 official manufacturer document quote verified A long description of the error is displayed on the screen.
  3. [3] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 252 official manufacturer document quote verified This should be done by a licensed installer or by your local dealer.
  4. [4] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 95 official manufacturer document quote verified The minimum water pressure to operate is 1 bar (=0.1 MPa).
  5. [5] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 95 official manufacturer document quote verified The maximum water pressure is 3 bar (=0.3 MPa).
  6. [6] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 250 official manufacturer document quote verified If you do NOT hear a clacking sound,
  7. [7] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 250 official manufacturer document quote verified If the water keeps running out of the unit, close both the water inlet and
  8. [8] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 249 official manufacturer document quote verified make sure that the room where you want to purge air is sufficiently
  9. [9] Daikin Altherma 3 R F – ERGA04~08E + EHVH/X04+08S18+23E – Installer reference guide (4P629086-1D (2024.04)) , p. 249 official manufacturer document quote verified We recommend to purge air with the air purge function of the unit