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Viessmann · Heat pumps · Viessmann Vitocal 250-A (One Base, monobloc)

F.913Interior temperature too high

Name in the manufacturer's documentation (service manual): Interior temperature too high[1]

In plain words (editorial)

The interior temperature (of the unit) is too high and the refrigerant circuit is off. The manual says to reduce the ambient temperature, for example with sun protection.

When to call a service technician: If it keeps happening, contact your heating contractor.

✎ 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] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 65 manufacturer document – copy from a distributor quote verified F.913
  2. [2] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 65 manufacturer document – copy from a distributor quote verified Reduce ambient temperature, for example through sun
  3. [3] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 65 manufacturer document – copy from a distributor quote verified Refrigerant circuit off