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The gas boiler (vaillant) not boiling water. the electric shower is ho

Posted by sara , on
The gas boiler (vaillant) not boiling water. the electric shower is hot, but taps are not heating up the water. the raidiators are working fine whats wrong?
Alex Peters

Alex Peters

boiler is not detecting a flow through the hot water system, or the divertor valve is playing up

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