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.
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.
Why is my Viessmann Vitodens 200-W showing fault code bF?
Your Viessmann Boiler is showing fault code bF because of an incorrect LON communication module. Replace the LON communication module.
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).
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.
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.
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.
How to acknowledge a fault on a Viessmann Vitodens 200-W?
To acknowledge a fault, follow the instructions on the display.
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.
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.
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) |
To Next Page