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Warmup Underfloor heating issue
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<blockquote data-quote="Murdoch" data-source="post: 490500" data-attributes="member: 24445"><p>This issue reminds me of a fault a customer had many years ago!</p><p></p><p>Similar board - single up front RCD, very occasional tripping and got worse when it was cold / snowy!</p><p></p><p>Couldn't find the issue, too random to replicate</p><p></p><p>Customer agreed to a RCBO board, which then narrowed it down to the downstairs lighting circuit ..... retests ..... nothing, and this included taking many lights down / off walls etc</p><p></p><p>In the end, by pure chance the customer decided to change the light fittings in the kitchen ............. and when taking one down I noticed a very slight "rust" mark on the "stem" of one of the lights ...... and the conclusion was that moisture was forming on the light, running into the lamp fitting and causing a N-E fault.</p><p></p><p>Once the lights were changed, the customer never had a RCD tripping event again, that couldn't be explained by a faulty toaster, iron or kettle</p></blockquote><p></p>
[QUOTE="Murdoch, post: 490500, member: 24445"] This issue reminds me of a fault a customer had many years ago! Similar board - single up front RCD, very occasional tripping and got worse when it was cold / snowy! Couldn't find the issue, too random to replicate Customer agreed to a RCBO board, which then narrowed it down to the downstairs lighting circuit ..... retests ..... nothing, and this included taking many lights down / off walls etc In the end, by pure chance the customer decided to change the light fittings in the kitchen ............. and when taking one down I noticed a very slight "rust" mark on the "stem" of one of the lights ...... and the conclusion was that moisture was forming on the light, running into the lamp fitting and causing a N-E fault. Once the lights were changed, the customer never had a RCD tripping event again, that couldn't be explained by a faulty toaster, iron or kettle [/QUOTE]
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