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Student & Learning Zone - City & Guilds
Fault Finding - Motor circ/S-plan
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<blockquote data-quote="jonnymc11" data-source="post: 174357" data-attributes="member: 646"><p>Fault one: open cct feed to start switch inside DOL. - what on one of the phase's or neutral? you only get a bell tester and IR tester, and they all rang out.</p><p></p><p>Fault two: open cct or high resistance in bonding. - that's what i thought, i used to bell tester and it buzzed, so did all the phases</p><p></p><p>Fault three: L/E fault on feed to circulator [pump]. possibly yeah</p><p></p><p>Fault four: Motorized valve micro switch faulty. - can only be wiring fault ONLY, they said, short, open, cross polarity's.</p><p></p><p>thank you very much</p></blockquote><p></p>
[QUOTE="jonnymc11, post: 174357, member: 646"] Fault one: open cct feed to start switch inside DOL. - what on one of the phase's or neutral? you only get a bell tester and IR tester, and they all rang out. Fault two: open cct or high resistance in bonding. - that's what i thought, i used to bell tester and it buzzed, so did all the phases Fault three: L/E fault on feed to circulator [pump]. possibly yeah Fault four: Motorized valve micro switch faulty. - can only be wiring fault ONLY, they said, short, open, cross polarity's. thank you very much [/QUOTE]
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Student & Learning Zone - City & Guilds
Fault Finding - Motor circ/S-plan
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