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    Hot Water system Airlock

    Help I have a problem that has just started to affect our hot water system. We have pumped CH and gravity fed HW, but just lately we have no hot water. I have tracked it down to what appears to be an airlock, as it is hot coming out of the boiler but cold on the HW tank inlet. Somebody...
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    Pumped CH Overflow

    Help, I have a pumped CH system and ever since I turned the boiler temperature down the hot water expansion tank has started to overflow. I had a corgi engineer round who checked the system over and he could not find anything wrong with the boiler. He drained the system down and cleaned and...
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