Vaillant ecoTEC Plus Combi F.063 – EEPROM reports faults during the read/write test. | BoilerTool

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F.063

EEPROM reports faults during the read/write test.

Vaillant ecoTEC Plus Combi

Possible cause

PCB defective

Measure

Replace the PCB.

Source: Manufacturer manual (PDF)

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