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    Earth leakage problem on Kärcher pressure washer

    Hi Bluejets and thanks for your continued interest - much appreciated. I took the whole motor out of the casing yesterday. As there had been a lot of liquid (grey, oily watery stuff) coming out of it the previous day, I didn't think there was any point doing any electrical testing until I had...
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    Earth leakage problem on Kärcher pressure washer

    Hi Bluejets. I expect you're thoroughly bored with my problem now. I have read everything you have written on this thread, but no need to worry about deja vu. Yesterday I began stripping the washer down. I had had to get some impact torx bits as I had been unable to free the bolts that hold...
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    Earth leakage problem on Kärcher pressure washer

    Will do, as soon as it arrives. The original trip was on the house RCD, not a fuse or MCB. This happened first when I was jetting a drain run and the machine just cut out. It was plugged into a four-way extension lead and then into a wall socket. Did a bit of searching and it was suggested the...
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    Earth leakage problem on Kärcher pressure washer

    Any idea what I should be testing woth the Metrel when it arrives?
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    Earth leakage problem on Kärcher pressure washer

    Right. Couldn't afford any Megger. Bought the metrel cheap on Ebay. It should be here in a couple of days.
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    Earth leakage problem on Kärcher pressure washer

    Will do. Just bought a Metrel multifunction tester so will see how that gets on.
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    Earth leakage problem on Kärcher pressure washer

    Thanks Bluejets. Looks like I need to found a proper sparks then.
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    Earth leakage problem on Kärcher pressure washer

    Thanks Bluejets. Understood about possible water ingress. I will investigate. I do not own a megger, I'm afraid, just a good multimeter.
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    Earth leakage problem on Kärcher pressure washer

    Hi all. Talented amateur here, stage electrician at school 1971 - 74 and have done much DIY electrical work iover the years, including central heating systems. I worked for several years for the residential division of Honeywell Control Systems and wrote many installation and user instructions...
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    Morphy Richards electric blanket controller pcb fault BEPCB020

    Thanks for explaining how the circuitry works, duke37 - appreciated.
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    Morphy Richards electric blanket controller pcb fault BEPCB020

    After testing the blanket circuits, where there was resistance on one but none on the other/s, that is conclusion I have reached as well. It has been binned. Cheers. SP
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    Morphy Richards electric blanket controller pcb fault BEPCB020

    Just looked at a YouTube video on diode testing and if I've done it right, then all diodes check out ok, giving a reading of around 0.6v. Starting to suspect it's the blanket's wiring at fault, not the controller.
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    Morphy Richards electric blanket controller pcb fault BEPCB020

    Hi all. My neighbour ask me if I can try and fix her electric blanket. The blanket wiring itself *may* be faulty, but when she took it in to a local electrical shop they did some tests on the blanket and the controller and said there was a fault in the controller's wiring. Well, I have...
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    Identify Triac from Varilight lighting dimmer switch

    Should have mentioned bulbs are incandescent. Have already replaced the switch, just excercising my curiosity as this is the second such switch taken out by an incandescent bulb failure in my house in the last couple of years.
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    Identify Triac from Varilight lighting dimmer switch

    Hi all. Well, I replaced the triac with a BT139 and it made no difference. Original symptom persists: as soon as you press the pot seutch the light is on at full. Varying the pot makes no difference. So, could another component be at fault? The triac cost as much as the whole switch more or...
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    Identify Triac from Varilight lighting dimmer switch

    Fantastic - thanks de Edd - although this dimmer was bought new only two years ago! I've now managed to take some pics, so maybe you could confirm if the pinouts are the same as a BT138? I've been recommended the BT139 previously and used that successfully - would that do - readily available on...
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    Identify Triac from Varilight lighting dimmer switch

    Are the pin-outs the same from one triac to another? If they are then I guess it doesn't matter too much which one I use to replace it.
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    Identify Triac from Varilight lighting dimmer switch

    Thanks Bluejets. I'd just like to get confirmation that I have a triac in the part number I quoted and what its spec is. P.
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    Identify Triac from Varilight lighting dimmer switch

    Hi folks. Managed to repair a touch-activated table lamp after a bulb blowing stopped it working. On that occasion I found an online article about replacing the triac with a BT139, with greater surge resilience. Now the Varilight wall switch dimmer has failed in the full-on mode after a bulb...
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