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Introduction
If you touch a live part and get an electric shock, the residual current device (RCD) detects it and switches off in a flash.
Having such a safety switch on your cable makes you feel safe (and rightly so), whether you're working on electronics or trimming your hedge.
It's just a problem if the protection fails at the critical moment......
What you need
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the circuit breaker works with the IC RV4145, which requires 26V, but there are 230V on the line, the excess is 'burned off' in a large resistor
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directly next to the resistor sits (stands) a small electrolytic capacitor, a design flaw, because electrolytic capacitors do not like heat ..... after a few years they are defective
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and the dangerous thing here is, you don't notice anything ..... current still flows .......
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Only by pressing the 'Test' button do you notice the defect!
Ask FixBot
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Desolder the defective electrolytic capacitor.
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To make the new electrolytic capacitor last longer, install it on the underside... it is not as hot there.
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Observe the polarity, see the photo for +.
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When testing without switching off, the small test resistance can burn out and must then also be replaced; 6.8 kΩ for 30mA RCD (18 kΩ in the photo).
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so, attention, such an RCD is not 'fail-safe'
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therefore regularly press the 'Test' button !
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Follow these steps in reverse order to reassemble your device.
