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I received a new Biasi Full Sequence PCB today, plugged it in a bit tentatively with a 0.5A fuse, and once I'd realised that the plumber had turned off the gas at the tap, the boiler fired up and it's running like a dream. Swapped the 3.15A fuse back into it, and everything seems fine after a...

Huge thanks for your analysis, agile. I'm going to order a new board tomorrow morning, and get a low amp fuse for testing. When you suggest 1/2A fuse, do you mean 0.5A or did you mean 1A or 2A? Hopefully I will be able to sort it out for Tuesday... I'm beginning to smell of chlorine from going...

Thanks for you reply matt1e. As I was marking up the pictures I came to the conclusion that it may be the flue fan, following the PCB traces it wasn't in the right place for the gas valve. The flue fan has been a bit temperamental during the winter - after running hot water for a while and then...

I've checked all the fuses on the boiler. The fused spur supplying the boiler has a 3A fuse. The fuse on the power PCB has T1.6AL240V on it. The fuse on the control board (the one that has burnt) has F4AL250V. None of these has been messed around with since installation as far as I'm aware.

Hi Agile, thanks for your reply. I'm not in a position to install my own boiler, I'm just a bit of a pauper at the moment and trying to work out what is and isn't worthwhile doing. I agree, having checked the terms and conditions on the adlink site, it isn't worth getting one of their boards...

Okay, another update on my boiler. Plumber came out this morning, and spoke to Ideal technicians while testing. He says it's the gas valve shorting out that blew the board; a replacement board would just blow again. He's quoted me £500 for a new gas valve and board, including fitting and VAT...

Thanks for the speedy replies. I am considering buying from adlink simply because I just need to get the boiler going again as cheaply as possible. As the pressure vessel needs fixing/replacing as well (which means taking the boiler off the wall) I want to spend the minimum amount. I plan to...

Hi, just joined the forum to reply to this post. Sorry to dredge up and old one! I've got exactly the same problem. My Ideal Mini C28 (about 7 years old) packed up in the middle of a shower the other day. I got a plumber out who has quoted me a possible £650 to repair (he said could be PCB, gas...