Panasonic · Heat pumps · Panasonic Aquarea Monobloc, generation H

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 →

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] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 145 official manufacturer document quote verified H23 Indoor refrigerant liquid temperature sensor abnormality
[2] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 150 official manufacturer document quote verified During startup and operation of cooling and heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error.
[3] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 150 official manufacturer document quote verified Continue for 5 seconds.
[4] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 150 official manufacturer document quote verified Faulty connector connection.
[5] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 150 official manufacturer document quote verified Faulty sensor.
[6] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 150 official manufacturer document quote verified Faulty indoor unit PCB (main).