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Central Heating & Storage Heaters Forum
Y Plan / Mid Position Valve - Odd Boiler Behaviour
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<blockquote data-quote="Marvo" data-source="post: 289703" data-attributes="member: 20838"><p>How did you measure the 89V? Was it between the switched live and earth or to neutral? Were you using a digital tester with a ridiculously high input resistance? Unless it's a solid state switch, 89V on a switched live sounds odd, it should either be 230v or zero wrt ground or neutral. It sounds like your tester is oversensitive and is giving a reading of a capacitively induced signal. The only other reason for this type of reading can think of is maybe some condensation in the switch.</p></blockquote><p></p>
[QUOTE="Marvo, post: 289703, member: 20838"] How did you measure the 89V? Was it between the switched live and earth or to neutral? Were you using a digital tester with a ridiculously high input resistance? Unless it's a solid state switch, 89V on a switched live sounds odd, it should either be 230v or zero wrt ground or neutral. It sounds like your tester is oversensitive and is giving a reading of a capacitively induced signal. The only other reason for this type of reading can think of is maybe some condensation in the switch. [/QUOTE]
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