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A quick update. The other plumber (engineer) turned up late this afternoon and replaced the PCB, but the boiler still wouldn't fire. On a positive note, the fan/flue light came on, just like on the original PCB. He said that ruled out the PCB and he checked the APS pipes and fan, saying the...

I didn't trust him at all, no. He diagnosed a faulty air pressure switch and replaced that for a cost of £85 and when it turned out not to be that he asked for £230 for a replacement pcb inc labour. Having a quick look could see that he was charging £100 for swapping over the PCB, and...

Hi Tony, Thanks for the reply and confirmation. I did have a plumber round to inspect the system and he said that the boiler would cope, but he gave me no confidence at all in what he said with his general attitude. I guess I just need to call around and find someone I feel I can trust.

OK, thanks for your help everyone. Can I switch the subject as I seem to have ruffled some feathers. I can switch off the boiler now and rely on my immersion and Apollo GEM solar hot water system and go without heating until the end of summer. I was after a cheap repair as I am looking to...

Hi, the replacement aps was plastic. Still the same light came up. I had a look on the forums and this seems to be a regular fault with my boiler type - the pcb solder dries up and gives up.

Hi stardanny, It's brand new, in an interpart box. Is it possible to check whether the PCB is DOA or do I just make the assumption?

Hi, I have a Baxi 24 HE combi boiler installed in 2009 which developed an intermittent fan/flu flashing light problem. I had the APS replaced by an engineer and this was not the problem, so he said the PCB needed to be replaced. I decided the price he quoted was too much and had a look on...

That was the bit I forgot to mention.....the manufacturer went bust! They are/were called De-Sanita. Also, yes, the power supplies the steam, lights, etc. There's no pump as it runs off my 40kw combi boiler. I had an electrical wiring diagram which showed the 1mm black cable runs from the...

Hi guys, We have a German made shower; the kind which is all enclosed and has lots of jets, steam, radio, etc. The problem we have is that when it was installed the electrician that installed it thought it would be a good idea to cut the cable and remove the 16 amp in line RCD and the...