Vaillant ecotec Plus 831 F75 repair Rotherham

This was a little repair I did last week on a Vaillant ECOTEC Plus 831 Combination boiler in Rotherham, which had an intermittent F.75 fault. This fault happened mainly when the heating was on.

When the Customer called he was certain that the expansion vessel was the cause of the fault, and thought this would probably

Vaillant ecotec Pro 28 F61 repair

This was a repair I did today on a first generation Vaillant ecotec Pro 28 Combi boiler in Barnsley, S71.

The fault was an intermittent F.61 fault, allowing the boiler to be reset each time. Often is the case with these models that the printed circuit board starts to fail and presents the F.61 fault code.