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Rising Pressure on Vaillant ecotec plus - What to do?

My Vaillant ecotec plus boiler is nearly a year old - it was fine all year giving just hot water but as soon as we switched on the central heating the pressure rose and soon went into the red zone before finally turning itself off. The two taps underneath the boiler are both closed. Should I open one? Or is there a serious problem?

Adele n
November 2009

Vaillant Heating, Home Heating Systems Vaillant Hot Water

look on the vaillant web site, then call Vaillant there boilers are covered with a 2 year warranty against any fault .

wirecutterman
November 2009

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Rising Pressure on Vaillant ecotec plus - What to do?

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