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

F27Pressure switch abnormality

Name in the manufacturer's documentation (service manual): Pressure switch abnormality[1]

In plain words (editorial)

The high-pressure switch should be closed while the compressor is stopped, but the unit sees it open. According to the service manual this is usually the pressure switch itself, its connector or the outdoor unit PCB.

When to call a service technician: This needs a service visit – the pressure switch is part of the refrigerant circuit.

✎ 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-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 165 manufacturer document – copy from a distributor quote verified Pressure switch abnormality
  2. [2] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 202 manufacturer document – copy from a distributor quote verified During compressor stop, and outdoor high pressure switch is remain opened.
  3. [3] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 202 manufacturer document – copy from a distributor quote verified Continue for 1 minute.
  4. [4] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 202 manufacturer document – copy from a distributor quote verified Faulty connector connection.
  5. [5] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 202 manufacturer document – copy from a distributor quote verified Faulty switch.
  6. [6] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 202 manufacturer document – copy from a distributor quote verified Faulty outdoor unit PCB (main).