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Vaillant · Heat pumps · Vaillant aroTHERM plus with uniTOWER plus

F.823Hot gas temperature switch open

Name in the manufacturer's documentation (service manual): Hot gas temperature switch open[1]

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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] Vaillant uniTOWER plus VIH QW 190/6 E – Operating, installation and maintenance instructions (0020291525_05) (0020291525_05) , p. 63 official manufacturer document quote verified F.823 Hot gas temperature switch open
  2. [2] Vaillant uniTOWER plus VIH QW 190/6 E – Operating, installation and maintenance instructions (0020291525_05) (0020291525_05) , p. 63 official manufacturer document quote verified The hot gas thermostat shuts down the heat pump if the temperature in the refrigerant circuit is too high. Following a waiting period, the heat pump attempts to start once more. After three failed start attempts in succe…
  3. [3] Vaillant uniTOWER plus VIH QW 190/6 E – Operating, installation and maintenance instructions (0020291525_05) (0020291525_05) , p. 63 official manufacturer document quote verified Check the EEV
  4. [4] Vaillant uniTOWER plus VIH QW 190/6 E – Operating, installation and maintenance instructions (0020291525_05) (0020291525_05) , p. 63 official manufacturer document quote verified Replace the dirt filter in the refrigera- tion circuit, if required
  5. [5] Vaillant uniTOWER plus VIH QW 190/6 E – Operating, installation and maintenance instructions (0020291525_05) (0020291525_05) , p. 63 official manufacturer document quote verified Max. refrigerant circuit temperature: 110 °C