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Worcester heat exchanger
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<blockquote data-quote="UNG" data-source="post: 496635" data-attributes="member: 8931"><p>How old is the boiler and is it a combi or system boiler</p><p></p><p>If it is losing pressure then the heat exchanger would be leaking rather than being blocked</p><p></p><p>The question would be are there any obvious leaks if there are no leaks my guess would be that the expansion vessel might need repressurising. If the expansion vessel has lost it's charge pressure this can be easily identified when the system is cold refill the system to it's normal pressure if you then run the system as the water expands it will leak out of the expansion pipe outside.</p></blockquote><p></p>
[QUOTE="UNG, post: 496635, member: 8931"] How old is the boiler and is it a combi or system boiler If it is losing pressure then the heat exchanger would be leaking rather than being blocked The question would be are there any obvious leaks if there are no leaks my guess would be that the expansion vessel might need repressurising. If the expansion vessel has lost it's charge pressure this can be easily identified when the system is cold refill the system to it's normal pressure if you then run the system as the water expands it will leak out of the expansion pipe outside. [/QUOTE]
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