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Panasonic · Heat pumps · Panasonic Aquarea T-CAP Monobloc, generation J (R32)

H64Refrigerant high pressure abnormality

Name in the manufacturer's documentation (service manual): Refrigerant high pressure abnormality[1]

In plain words (editorial)

The heat pump has detected a fault of the outdoor high pressure sensor (its reading is used to detect a sensor error). The service manual names a faulty connector connection, the sensor itself or the outdoor unit PCB as causes.

When to call a service technician: Contact the installer or Panasonic service – the sensor, its connector and the PCB are checked inside the unit.

✎ 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 – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 164 official manufacturer document quote verified H64 Refrigerant high pressure abnormality
  2. [2] Service Manual – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 179 official manufacturer document quote verified During operation of cooling and heating, when the outdoor high pressure sensor output signal is 0 Vdc or 5 Vdc.
  3. [3] Service Manual – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 179 official manufacturer document quote verified Continue 4 times in 20 minutes.
  4. [4] Service Manual – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 179 official manufacturer document quote verified Faulty connector connection.
  5. [5] Service Manual – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 179 official manufacturer document quote verified Faulty sensor.
  6. [6] Service Manual – Mono Bloc Unit WH-MXC09J3E5 / WH-MXC12J6E5 (Aquarea T-CAP, R32) (PAPAMY2101001CE) , p. 179 official manufacturer document quote verified Faulty outdoor unit PCB (main).