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Clean the shower head strainers or remove the flow restricted from the heads


Often seen with woodstoves so that the water circulating in the heating loop was not too cold. If the heating coil in the stove is too cold, the acids condense and accelerate the corrosion of the water jacket. The one we have is a motorized valve that is temperature controlled to modulate the coil return temperature. Once the tank is sufficiently hot then ...


I used most the obvious solution: replace whole electronic parts with new ones. I haven't had any problems since then.

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