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A lesson in "Back to Basics"
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<blockquote data-quote="Evans Electric" data-source="post: 444591" data-attributes="member: 1408"><p>Checking an Immersion Heater last week ... tripping RCD after board change .... poor readings to earth ... I'm thinking I don't mess with these any more , get a plumber . Then ...I'll just double check with wiring disconnected although its a DP switch . </p><p></p><p>Element readings are now fine ....... at the switch on the landing ..what I saw as the earth wire at the heater end was PME'd into the neutral at the switch and no incoming earth feeding the switch . :C </p><p></p><p>The old story ....never assume anything in this game.</p><p></p><p>So back to rewire it . </p></blockquote><p></p>
[QUOTE="Evans Electric, post: 444591, member: 1408"] Checking an Immersion Heater last week ... tripping RCD after board change .... poor readings to earth ... I'm thinking I don't mess with these any more , get a plumber . Then ...I'll just double check with wiring disconnected although its a DP switch . Element readings are now fine ....... at the switch on the landing ..what I saw as the earth wire at the heater end was PME'd into the neutral at the switch and no incoming earth feeding the switch . :C The old story ....never assume anything in this game. So back to rewire it . [/QUOTE]
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