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kelsey75Aug 30, 2025
What causes fault code C3 on a Viessmann Vitodens 222-F?
- TtheresahallAug 30, 2025
If your Viessmann Boiler displays fault code C3, it indicates an Extension AM1 communication error. Check electrical connections.
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What causes fault code C3 on a Viessmann Vitodens 222-F?
If your Viessmann Boiler displays fault code C3, it indicates an Extension AM1 communication error. Check electrical connections.
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 b8 mean on my Viessmann Boiler?
If your Viessmann Boiler displays Fault Code b8, there is a lead break in the flue gas temperature sensor. Check the flue gas temperature sensor.
What does Fault Code dA mean on my Viessmann Vitodens 222-F Boiler?
If your Viessmann Boiler displays Fault Code dA, there is a short circuit in the room temperature sensor for heating circuit 1 (without mixer). Check the room temperature sensor for heating circuit 1.
How to fix fault code CF on Viessmann Vitodens 222-F?
If your Viessmann Boiler displays fault code CF, it indicates a communication error with the LON communication module. Replace the LON communication module.
What does fault code dE mean on Viessmann Vitodens 222-F Boiler?
If your Viessmann Boiler displays fault code dE, it indicates a lead break in the room temperature sensor, heating circuit 2 (with mixer). Check room temperature sensor for heating circuit 2 and remote control settings.
What does Fault Code b0 mean on my Viessmann Vitodens 222-F?
If your Viessmann Boiler displays Fault Code b0, there is a short circuit in the flue gas temperature sensor. Check the flue gas temperature sensor.
What does Fault Code C5 mean on my Viessmann Vitodens 222-F?
If your Viessmann Boiler displays Fault Code C5, there is a communication error with the variable speed internal pump. Check the setting of coding address "30".
Why does my Viessmann Vitodens 222-F display fault code b1?
If your Viessmann Boiler is showing fault code b1, there may be a communication error with the programming unit. To resolve this, check the connections and replace the programming unit if necessary.
What to do if Viessmann Boiler displays fault code A9?
If your Viessmann Boiler displays fault code A9, it indicates that the internal circulation pump is blocked. You should check the circulation pump.
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)) |
