Vaillant ecoTEC Plus Combi F.097 – The self-test of the main PCB has failed. | BoilerTool

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F.097

The self-test of the main PCB has failed.

Vaillant ecoTEC Plus Combi

Possible cause

PCB self-test failed (PCB defective)

Measure

Replace the PCB.

Source: Manufacturer manual (PDF)

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