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Why does the fault message reappear on my Viessmann Vitodens 200-W Boiler the day after I acknowledged it?
The fault message is re-displayed because the fault message facility has restarted.
How to acknowledge a fault on a Viessmann Vitodens 200-W?
To acknowledge a fault, follow the instructions on the display.
What to do if my Viessmann Boiler displays fault code b5?
If your Viessmann Boiler is showing fault code b5, this indicates an internal fault. The suggested solution is to replace the control unit.
What does fault code E4 mean on my Viessmann Vitodens 200-W Boiler?
Fault code E4 on your Viessmann Boiler indicates a fault with the supply voltage of 24 V. The suggested solution is to replace the control unit.
How to fix fault code 10 on a Viessmann Boiler?
Fault code 10 on your Viessmann Boiler indicates a short circuit in the outside temperature sensor. You should check the outside temperature sensor.
Why is my Viessmann Boiler showing fault code b7?
Fault code b7 on your Viessmann Boiler indicates that the boiler coding card is faulty. Try plugging in the boiler coding card, or replace it if it's already faulty.
What does it mean when my Viessmann Vitodens 200-W Boiler displays fault code 18?
When your Viessmann Boiler displays fault code 18, it means there is a lead break in the outside temperature sensor. You should check the outside temperature sensor.
How do I troubleshoot fault code 30 on my Viessmann Vitodens 200-W?
Fault code 30 on your Viessmann Boiler indicates a short circuit in the boiler water temperature sensor. Check the boiler water temperature sensor.
What should I do if my Viessmann Boiler shows fault code 38?
If your Viessmann Boiler shows fault code 38, it means there is a lead break in the boiler water temperature sensor. Check the boiler water temperature sensor.
What causes fault code 20 on a Viessmann Boiler?
Fault code 20 on a Viessmann Boiler is caused by a short circuit in the system flow temperature sensor. You should check the low loss header sensor.
General| Type | Condensing Boiler |
|---|---|
| Installation | Wall-mounted |
| Heat Exchanger Material | Stainless steel |
| Efficiency | Up to 98% |
| Control | Vitotronic control |
| Fuel Type | Natural gas, LPG |
| Dimensions | 700 mm |
| Warranty | Up to 10 years |
| Output range | 1.8 to 35 kW (depending on model) |
