Recent content by BadVoltage

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    Will overvoltage damage circuit boards? (Ed.)

    Thanks, much appreciated.
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    Will overvoltage damage circuit boards? (Ed.)

    Thanks. The boiler's 8 years old and I'm not wedded to a particular make. Plus I've just invested in the Wiser kit so wouldn't want to waste that (it sounds like the Vaillant kit would replace the Wiser?).
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    Will overvoltage damage circuit boards? (Ed.)

    Is it worth getting the eBus connected up?
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    Will overvoltage damage circuit boards? (Ed.)

    There is an OpenTherm block but I have literally no idea what to do with it and, regardless, my 10 year old boiler is unlikely to have that feature. Again, I've no idea what these Bus connections are for. As a result, I've not touched it. Re: claiming if the installer - a) I've only been in the...
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    Will overvoltage damage circuit boards? (Ed.)

    Just to update - I managed to find a new PCB at a nearby merchant, and swapped it in. I tweaked the wiring in the back plate (moved one of the RT wires from 2 to 1). NO LINK to L And it all seems to be working perfectly. Have booked an engineer to come out and give it a service too. A...
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    Will overvoltage damage circuit boards? (Ed.)

    I replaced the hub with a Drayton Wiser unit and the CH wasn't firing (hot water was fine). After some research it looked like i needed a link between L and 1. Unfortunately, I'm pretty sure that this sent 240v down 2, which were both connected to the 24v RT and not the 240v RT connections in...
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    Will overvoltage damage circuit boards? (Ed.)

    That's what I suspected but was holding out hope. Damn. This is going to sting.
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    Will overvoltage damage circuit boards? (Ed.)

    Nope.
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    Will overvoltage damage circuit boards? (Ed.)

    There's no sign of burning, scorching, or smoke. But there is the smell I would associate with that.
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    Will overvoltage damage circuit boards? (Ed.)

    The 12v RT is on the top left of the PCB, 240v is on the top right. Just to add, there is no sign of scorching, smoke, etc on the front or back of the PCB but there is the smell of burnt plastics/electronics.
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    Will overvoltage damage circuit boards? (Ed.)

    That's what I'm hoping. Mainly because I do know that there is a 230v RT connection and I'm hoping I can just wire to that instead of the blown 12v RT.
  12. B

    Will overvoltage damage circuit boards? (Ed.)

    The voltage was applied after the fuse.
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    Will overvoltage damage circuit boards? (Ed.)

    The fuse has been changed and is new. No joy.
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    Will overvoltage damage circuit boards? (Ed.)

    If someone inadvertently sent 240v to the 24v RT connections on their Vaillant ecoTec pro 28 boiler and happened to blow the 3A fuse, what are the chances the boiler's completely bu****ed? Anyone that can stop laughing long enough to answer would be appreciated. Thanks in advance.
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