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F23 errors in Vaillant boilers

An F23 error in Vaillant boilers indicates that a momentary blockage has occurred due to an excess of temperature in the equipment. The excess temperature

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How to bleed a boiler in 4 easy steps

Bleeding a boiler can be useful for many different reasons. Amongst others, it helps to expel air from the system, increase the radiators’ performance, reduce the

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Why is my boiler leaking water?

Below are some answers and solutions. If your boiler is leaking water, this could be a sign of various problems: the pressure may be too high,

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