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Vaillant Combi Boiler Error Codes
Choose your model or find the code in the table.
Models
Images are representative and will be replaced by manufacturer-approved photos. The code on the display is an example.
Vaillant Combi Boiler code list
| Code | Fault | Models | Who fixes |
|---|---|---|---|
| F.22 | Low water pressure | ecoTEC plus, ecoTEC pro | You can try this |
| F.28 | Ignition failure — no flame | ecoTEC plus, ecoTEC pro | Be careful |
| F.29 | Flame loss during operation | ecoTEC plus, ecoTEC pro | Be careful |
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