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Panasonic · Heat pumps · Panasonic Aquarea Bi-bloc (split), generation L (R290)

H23Indoor refrigerant liquid temperature sensor abnormality

Name in the manufacturer's documentation (service manual): Indoor refrigerant liquid temperature sensor abnormality[1]

In plain words (editorial)

The controller gets an implausible reading from the refrigerant liquid temperature sensor – usually a connector, the sensor itself or the PCB.

When to call a service technician: Ask the installer to check the sensor, its connector and wiring (power off first).

✎ 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] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 189 manufacturer document – copy from a distributor quote verified H23 Indoor refrigerant liquid temperature sensor abnormality
  2. [2] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified During startup and operation of cooling and heating, the temperatures detected by the outdoor refrigerant liquid temperature sensor are used to determine sensor error.
  3. [3] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified Continue for 5 seconds.
  4. [4] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified Faulty connector connection.
  5. [5] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified Faulty sensor.
  6. [6] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified Faulty indoor unit PCB (main).
  7. [7] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 196 manufacturer document – copy from a distributor quote verified always switch off the power before remove and connect the component.