vitodens 200 wb2b

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    Viessmann Vitodens 200 WB2B

    Generally there is a problem with the boiler cutting out after only a few minutes of supplying DHW to taps or showers and not restarting once the cold water supply brings to boiler temperature down to 50oC or lower . Specifically, is there a "right way up" to install a new Plate Heat Exchanger...
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