Daikin · Heat pumps · Daikin Altherma 3 R F (split heat pump, R32)
H6-00OU: Malfunction of position detection sensor
Name in the manufacturer's documentation (service manual): OU: Malfunction of position detection sensor
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Possible causes (source text)
- Faulty compressor or miswiring of the compressor power supply cable[2]
- Faulty main pcb[3]
- Faulty inverter pcb[4]
- Closed stop valve in the refrigerant circuit[5]
- Clogged refrigerant circuit[6]
- Refrigerant overcharge or shortage[7]
- Non‑condensables and/or humidity in the refrigerant circuit[8]
- ▪ faulty or disturbance of the power supply (power supply must be within range of nominal operating voltage ±4%), ▪ power drop, ▪ short circuit[9]
Steps given by the manufacturer (source text)
- Perform a check of the compressor[10]
- Perform a check of the main pcb[11]
- Perform a check of the inverter pcb[12]
- Check that all stop valves of the refrigerant circuit are open[13]
- Check if the refrigerant circuit is clogged[14]
- Check if the refrigerant circuit is correctly charged[15]
- Check for the presence of non‑condensables and/or humidity in the refrigerant circuit[16]
- Check if the power supply is compliant with the regulations[17]
⚠ 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] 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
H6-00 OU: Malfunction of position detection sensor
- [2] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
faulty compressor or miswiring of the compressor power supply cable.
- [3] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
faulty main pcb.
- [4] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
faulty inverter pcb.
- [5] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
closed stop valve in the refrigerant circuit.
- [6] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
clogged refrigerant circuit.
- [7] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
refrigerant overcharge or shortage.
- [8] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
non‑condensables and/or humidity in the refrigerant circuit.
- [9] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
▪ faulty or disturbance of the power supply (power supply must be within range of nominal operating voltage ±4%), ▪ power drop, ▪ short circuit.
- [10] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
perform a check of the compressor.
- [11] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
perform a check of the main pcb.
- [12] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
perform a check of the inverter pcb.
- [13] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
check that all stop valves of the refrigerant circuit are open.
- [14] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
check if the refrigerant circuit is clogged.
- [15] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
check if the refrigerant circuit is correctly charged.
- [16] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
check for the presence of non‑condensables and/or humidity in the refrigerant circuit.
- [17] Daikin – Service manual Daikin Altherma 3 R F + W, ESIE20-13C – 2022.09 (PDF copy on installer site cncpompyciepla.pl) (ESIE20-13C) , p. 49 manufacturer document – copy from a distributor quote verified
check if the power supply is compliant with the regulations.