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Panasonic · Heat pumps · Panasonic Aquarea Monobloc, generation H

H98Outdoor high pressure overload protection

Name in the manufacturer's documentation (service manual): Outdoor high pressure overload protection[1]

In plain words (editorial)

In heating mode the refrigerant pressure is too high and the overload protection stopped the unit. The service manual lists water-side causes (water pump, water flow or leakage) among others – see the technical section below.

When to call a service technician: If the code repeats, call the installer.

✎ 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-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 145 official manufacturer document quote verified H98 Outdoor high pressure overload protection
  2. [2] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified During operation of heating, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor.
  3. [3] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Faulty water pump.
  4. [4] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Insufficient water flow rate in system.
  5. [5] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Water leak in system.
  6. [6] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified 2/3 way closed.
  7. [7] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Clogged expansion valve or strainer.
  8. [8] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Excessive refrigerant.
  9. [9] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Faulty outdoor high pressure sensor.
  10. [10] Service Manual – Mono Bloc Unit WH-MDC05H3E5 / 07 / 09 (PAPAMY1709003CE) , p. 171 official manufacturer document quote verified Faulty outdoor unit PCB (main).