F75 fault code Vaillant ecotec

F75 fault code (F.75) – Vaillant Ecotec Boilers

The F75 fault code on the Vaillant Ecotec boiler range refers to a pressure issue when the pump starts. The pump provides the circulation of water around the boiler and to the radiators and hot water cylinders if installed. The sensor triggers when the pressure drops. There are several reasons why the F75 fault code […]

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