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

F.91DIO electronics module communication error

Name in the manufacturer's documentation (service manual): DIO electronics module communication error[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] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified F.91
  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. 52 manufacturer document – copy from a distributor quote verified Check the settings in the
  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. 52 manufacturer document – copy from a distributor quote verified Adjust set- tings if required
  4. [4] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified Check connections to DIO
  5. [5] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified Check whether components are wrongly connected
  6. [6] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified Isolate the system from the
  7. [7] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified Restart the system
  8. [8] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified If the fault persists, replace DIO electronics module
  9. [9] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 52 manufacturer document – copy from a distributor quote verified Function of connected com- ponents in emergency mode