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RCCB tripping randomly
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<blockquote data-quote="UNG" data-source="post: 499841" data-attributes="member: 8931"><p>Now that is a question I don't have an answer for.</p><p></p><p>There doesn't seem to be any exact timings as to when any fridge or freezer will attempt to defrost, the same unit can vary from 36 - 48 hours going up to 7 - 10 days</p><p></p><p>The only reason I discovered the defrost element issue was after narrowing down the tripping faults on a job to a freezer, the customer was all set to bin it so I asked if they would let me have it to see if I could find what was causing it trip their RCD, having got it in the workshop I took a cover off the back and found a mechanical timing relay, testing the output I found a short to earth and followed the wiring to a faulty heating element which at the time around 30 years ago cost about £8.50. The customer hadn't replaced the freezer so they got it back repaired and I got paid for the repair so it was a good result</p><p></p><p>Since then I've found probably a couple of dozen fridges / freezers that have a faulty defrost element without spending many hours looking for the intermittent tripping fault</p></blockquote><p></p>
[QUOTE="UNG, post: 499841, member: 8931"] Now that is a question I don't have an answer for. There doesn't seem to be any exact timings as to when any fridge or freezer will attempt to defrost, the same unit can vary from 36 - 48 hours going up to 7 - 10 days The only reason I discovered the defrost element issue was after narrowing down the tripping faults on a job to a freezer, the customer was all set to bin it so I asked if they would let me have it to see if I could find what was causing it trip their RCD, having got it in the workshop I took a cover off the back and found a mechanical timing relay, testing the output I found a short to earth and followed the wiring to a faulty heating element which at the time around 30 years ago cost about £8.50. The customer hadn't replaced the freezer so they got it back repaired and I got paid for the repair so it was a good result Since then I've found probably a couple of dozen fridges / freezers that have a faulty defrost element without spending many hours looking for the intermittent tripping fault [/QUOTE]
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RCCB tripping randomly
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