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

F.101PlusBus voltage error

Name in the manufacturer's documentation (service manual): PlusBus voltage error[1]

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The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

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  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. 53 manufacturer document – copy from a distributor quote verified F.101
  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. 53 manufacturer document – copy from a distributor quote verified Check PlusBus power supply at HPMU electronics module:
  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. 53 manufacturer document – copy from a distributor quote verified Reconnect each one in turn
  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. 53 manufacturer document – copy from a distributor quote verified Check connections at plug 74 of the HPMU electronics module
  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. 53 manufacturer document – copy from a distributor quote verified Wall mounted indoor unit: Check the connections at plug 74 on the connection socket on the underside of the appliance
  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. 53 manufacturer document – copy from a distributor quote verified Check whether there is a short circuit at the PlusBus cables
  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. 53 manufacturer document – copy from a distributor quote verified Isolate the system from the
  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. 53 manufacturer document – copy from a distributor quote verified Restart the system
  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. 53 manufacturer document – copy from a distributor quote verified If the fault persists, replace HPMU electronics module
  10. [10] Viessmann – Service instructions: System configuration and diagnosis for heat pumps with Viessmann One Base (6194799 GB, 3/2022) (6194799 GB (3/2022)) , p. 53 manufacturer document – copy from a distributor quote verified Function of the electronics modules connected to