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We just cleaned out the main exchanger and an unbelievable amount of rubbish came out of it; it was coming out in lumps the size of small peas. We now have HW and CH :D To fill the system the other day was taking about 25 mins, now it takes about 2 minutes; that part was completely blocked...

Thanks for your opinions. I've been reading about it further and it looks like it'll be a full days worth of work, and I guess the professionals will know exactly how much of which chemical to use etc. So I guess what I need to decide is should get BG to do it or should I try to find someone...

yeah i am thinking about getting it done professionally, but British Gas gave a quote of £670 and I think that is way too much. I'm going to take a gamble and try it myself, and hopefully get it done for about £100.

Thanks for your replies. I'm going to get the machine from HSS http://www.hss.com/g/51610/Central-Heating-Flusher.html I put some Fernox F3 in there earlier today, but I don't think I'm going to be able to leave it for a few weeks as there is completely no HW or CH. I've found some...

Thanks for your reply. I've just seen the following machine at a hire shop. Is this the sort of thing I need to clean the system out? http://www.brandontoolhire.co.uk/directory/prodview.asp?idproduct=380

We just cleaned out the Heat Exchanger and a lot of black rubbish came out of it, which is worrying considering it is only 3 days old. However, after cleaning it out, we still get no hot water or heating. The green light is also continuously flashing, and the orange one only comes on for a...

yep the pump is running

My boiler failed last week, it's about 6 years old. It was giving no Hot water or Central Heating. I got someone in from British Gas 3 days ago and they changed the Heat Exchanger and Diverter Valve. This fixed the central heating, but the hot water was alternating between hot and cold. He said...