What should I check if my Viessmann Vitodens 200-W is showing fault code dC?
If your Viessmann Boiler is showing fault code dC, check the room temperature sensor for heating circuit 3. The fault code indicates a short circuit in that sensor (with mixer).
Why does the fault display show 'E' on my Viessmann Boiler?
If the fault display on your Viessmann Boiler shows 'E', it indicates a fault in the burner control unit. You should check the burner control unit to resolve this issue.
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.
What steps should I take for fault code C8 on my Viessmann Boiler?
For fault code C8 on your Viessmann Boiler, check the setting of coding address "E5". This code indicates a communication error with the external variable speed heating circuit pump for heating circuit 3 (with mixer).
How to fix fault code bE on a Viessmann Vitodens 200-W?
To fix fault code bE on a Viessmann Boiler, check the connections, lead, coding address "A0", and remote control settings. This code indicates a communication error with the remote control Vitotrol for heating circuit 3 (with mixer).
Why is my Viessmann Vitodens 200-W showing fault code 9E?
Your Viessmann Boiler is showing fault code 9E because there is no flow rate, or a flow rate too low, in the collector circuit, or the temperature limiter has responded. Check the solar circuit pump and solar circuit, and acknowledge the fault message.
How do I resolve fault code A6 on my Viessmann Boiler?
To resolve fault code A6 on your Viessmann Boiler, replace the impressed current anode, as this code indicates it is faulty.
What does fault code 40 mean on a Viessmann Boiler?
Fault code 40 on a Viessmann Boiler indicates a short circuit in the flow temperature sensor for heating circuit 2 (with mixer). Check the flow 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.
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) |
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