Skip to content
EN

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

U8-01Connection with LAN adapter lost

Name in the manufacturer's documentation (service manual): Connection with LAN adapter lost[1]

In plain words (editorial)

The connection with the LAN adapter was lost – the manual names a faulty LAN adapter PCB or hydro PCB.

When to call a service technician: Check that the LAN adapter is powered and connected; otherwise 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. 256 official manufacturer document quote verified U8-01 Connection with LAN adapter lost
  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. 62 manufacturer document – copy from a distributor quote verified faulty lan adapter pcb.
  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. 62 manufacturer document – copy from a distributor quote verified faulty hydro pcb.
  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. 62 manufacturer document – copy from a distributor quote verified perform a check of the lan adapter pcb.
  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. 62 manufacturer document – copy from a distributor quote verified perform a check of the hydro pcb.