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Central Heating & Storage Heaters Forum
180v on control demand neutral,
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<blockquote data-quote="Bruspark" data-source="post: 520114" data-attributes="member: 20106"><p>It sounds as if the heating system has multiple supplies - possibly on different RCBO's etc. It's a recipe for problems. </p><p></p><p> Pick <strong>one supply point</strong> and test it properly (properly = not just with a high impedance voltmeter or a neon etc.)</p><p> Then connect the controller to it and see what happen on the outputs</p><p> If OK run supplies from the same point to the boiler and test that (with a link to fire up if you cant find a test mode).</p><p> If that's ok it should all work as expected when the controller is connected to the boiler</p></blockquote><p></p>
[QUOTE="Bruspark, post: 520114, member: 20106"] It sounds as if the heating system has multiple supplies - possibly on different RCBO's etc. It's a recipe for problems. Pick [B]one supply point[/B] and test it properly (properly = not just with a high impedance voltmeter or a neon etc.) Then connect the controller to it and see what happen on the outputs If OK run supplies from the same point to the boiler and test that (with a link to fire up if you cant find a test mode). If that's ok it should all work as expected when the controller is connected to the boiler [/QUOTE]
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180v on control demand neutral,
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