Error code
Viessmann filtre All models code A3
No approved translation for this record yet; showing the original text.
Meaning
Outside temperature below 34°F (1°C): Heating circuit pump “ON” Outside temperature above 37°F (3°C): Heating circuit pump “OFF”
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
A3:-9 to A3:15
Solution
Solution steps are not shared for faults that may be dangerous.
No do-it-yourself solution is given for this fault. For your safety, call an authorised service.
Remote technician support
Get help from a technician over a video call.
Address of this page: https://www.remfixit.com/tr/viessmannfiltre/tum-modeller/a3