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Shelley StewartAug 28, 2025
What causes fault code A7 on a Viessmann Boiler?
- LLisa HahnAug 28, 2025
If your Viessmann Boiler displays fault code A7, it means the programming unit is faulty. Replace programming unit.
What causes fault code A7 on a Viessmann Boiler?
If your Viessmann Boiler displays fault code A7, it means the programming unit is faulty. Replace programming unit.
How to resolve fault code 59 on a Viessmann Vitodens 222-F?
If your Viessmann Boiler displays fault code 59, it indicates a lead break in the outlet temperature sensor. Check sensor.
Why is my Viessmann Vitodens 222-F displaying fault code 51?
If your Viessmann Boiler displays fault code 51, it indicates a short circuit in the outlet temperature sensor. Check sensor.
What should I do if my Viessmann Boiler shows fault code 58?
If your Viessmann Boiler displays fault code 58, it indicates a lead break in the cylinder temperature sensor. Check sensors.
What does fault code 50 mean on a Viessmann Boiler?
If your Viessmann Boiler displays fault code 50, it indicates a short circuit in the cylinder temperature sensor. Check the sensors.
How do I fix fault code 28 on my Viessmann Vitodens 222-F?
If your Viessmann Boiler displays fault code 28, it indicates a lead break in the system flow temperature sensor. Check the low loss header sensor.
What does fault code E0 mean on a Viessmann Boiler?
If your Viessmann Boiler displays fault code E0, it indicates a fault with an external LON subscriber. Check connections and LON subscribers.
What to do if Viessmann Boiler displays fault code 38?
If your Viessmann Boiler displays fault code 38, it indicates a lead break in the boiler water temperature sensor. Check the boiler water temperature sensor.
Why is my Viessmann Vitodens 222-F showing fault code 30?
If your Viessmann Boiler displays fault code 30, this indicates a short circuit in the boiler water temperature sensor. Check the boiler water temperature sensor.
What does fault code 18 mean on my Viessmann Boiler?
If your Viessmann Boiler displays fault code 18, it indicates a lead break in the outside temperature sensor. Check the outside temperature sensor.
General| Type | Gas Condensing Boiler |
|---|---|
| Model | Vitodens 222-F |
| Integrated DHW Storage Tank | Yes |
| Control | Vitotronic 200 |
| Fuel Type | Natural Gas or LPG |
| Heat Exchanger Material | Stainless Steel |
| Modulation Range | 1:10 |
| Max. Water Temperature | 85°C |
| Efficiency | Up to 98% |
| Tank Capacity | 130 liters |
| DHW Tank Capacity | 130 liters |
| Installation Type | Floor Standing |
| Water Pressure | Up to 3 bar |
| Noise Level | Dependent on model and operating conditions (typically around 40-50 dB(A)) |
