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<blockquote data-quote="Geoff1946" data-source="post: 484601" data-attributes="member: 28452"><p>I believe the pump should be wired either straight across the boiler supply terminals or have a live feed from the boiler control board itself if it has an over-run function.</p><p></p><p>(i.e. The pump must run whenever the boiler fires, and possibly run on to cool it after switch off. )</p><p></p><p>Hence its either a wiring fault or a boiler fault. Nothing else in the control circuit should be involved.</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 484601, member: 28452"] I believe the pump should be wired either straight across the boiler supply terminals or have a live feed from the boiler control board itself if it has an over-run function. (i.e. The pump must run whenever the boiler fires, and possibly run on to cool it after switch off. ) Hence its either a wiring fault or a boiler fault. Nothing else in the control circuit should be involved. [/QUOTE]
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