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Vaillant ecoTEC pro Error Codes
Verified error codes seen on this model.
Pick the code shown on your Vaillant ecoTEC pro below to see its meaning and fix steps.
See codesecoTEC pro codes
| Code | Fault | Who fixes |
|---|---|---|
| F.22 | Low water pressure | You can try this |
| F.28 | Ignition failure — no flame | Be careful |
| F.29 | Flame loss during operation | Be careful |