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If your Viessmann Boiler displays fault code b8, which indicates a lead break in the flue gas temperature sensor, you should check the sensor.
What does fault E3 mean on Viessmann B0KA Boiler?
If your Viessmann Boiler displays fault code E3, indicating a fault in the safety chain, you should check the temperature limiter and connecting cables.
How to fix fault F0 on Viessmann B0KA Boiler?
If your Viessmann Boiler displays fault code F0, which indicates an internal fault, you should replace the control unit.
What causes fault FF on Viessmann B0KA?
If your Viessmann Boiler displays fault code FF, which indicates a fault in the burner control unit, you should check the ignition electrodes and connecting cables.
What does fault F3 mean on Viessmann B0KA?
If your Viessmann Boiler displays fault code F3, indicating that a flame signal is already present at burner start, you should check the ionisation electrode and connecting cable.
What does fault E5 mean on a Viessmann Boiler?
If your Viessmann Boiler displays fault code E5, indicating an internal fault, you should check the ionisation electrode and the connecting cables.
General| Model | B0KA |
|---|---|
| Category | Boiler |
| Modulation | Up to 1:6 |
| Fuel Type | Natural Gas |
| Efficiency | Up to 98% AFUE |
