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Old 03-22-2017, 12:43 PM   #7
SIKSUKR
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You say you have hot water at other points but the washer soon gets cooler. Before I assume its the coil run the other water points that seem fine for a while and see if they cool down. If so then I would suspect your coil could have caked up minerals that keep it from exchanging the heat from the boiler water to the hot water feed. I've replaced mine and it was very simple. In my case the boiler water pressure kept getting too high and the relief valve would open. Turns out I had a leak in that coil that would allow the higher water pressure to enter the lower pressure boiler water chamber. Easy fix though.
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