Double insulated cooker hood trips RCD

Lee · 2017-12-28T21:35:04+00:00

Double insulated cooker hood with the usual plastic cased motor is tripping the RCD it's connected to, but only intermittently and only when changing the fan speed. Thing I don't understand is how? Arcing maybe? I did find a couple of discussion threads, but they were more about new installations. This has worked fine for the last ten years*... It's definitely not earthed (dire warnings against doing so in the manual) and there is no measurable DC resistance from any metal parts of the unit to mains earth. There's no DC resistance from L OR N of the mains plug to any metal parts either - in case any one asks :) * At ten years old I'm more than happy to swap it out, if it really is the cause of the problem.

Dec 28, 2017 44 Replies

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Bill Wright 8 years ago

You shouldn't be doing electrical work at your age.

Bill

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ARW 8 years ago

Bloody well should be. Or at least know how to reset a MCB or RCBO.

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John Rumm 8 years ago

I think I probably started doing socket extensions at the age of ten ;-)

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tabbypurr 8 years ago

I put in whole socket & lighting systems at that age. Scary really.

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bert 8 years ago

Tune for optimum smoke :-)

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