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LG · Heat pumps · LG Therma V Monobloc (air-to-water heat pump)

CH24Low/High Pressure Switch Perception Error

Name in the manufacturer's documentation (service manual): Low/High Pressure Switch Perception Error[1]

In plain words (editorial)

Low/high pressure switch error – the low pressure is too low, the high pressure too high, or the pressure switch itself is defective.

When to call a service technician: Contact an LG-authorised service technician or your 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] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified 24 Low/High Pressure Switch Perception Error
  2. [2] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified Low pressure is below 0.2 kgf/cm2.
  3. [3] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified High pressure is above 42~44
  4. [4] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified Pressure switch is self-defective.
  5. [5] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified Check the low/high pressure
  6. [6] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 278 official manufacturer document quote verified Check the connection of harness