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Thanks all for your help on this one, Was getting real grief from the other half so went ahead and got a new plate. Just had the first shower, like having a new boiler fitted. thanks again to all. Dave

Thanks To clean out my DHW I have been using ferox limescale remover which I was advised was the correct stuff for the job At 34c (full flow) i'm getting about 9 litres a min At 42c (quarter flow) i'm getting about 2.5 litres a min The flow pipe doesn't seem to change in temp when...

I have cleaned out my DHW about six times since I moved in and have made sure that when I flush it out I get a good flow out of each side. I'm presently getting a good flow on the hot water side but its only coming out at 34c. This is just about bearable in the shower but seems to be...

have measured the temps on the pipework after it has been running for a while, the heating side is about 10c different from in to out. I then ran the hot water and the outgoing pipe only ever reached 34c. Any one know the best place to get a new DHW heat exchanger for this model? I...

thanks, how or where can I measure the flow and return temps?

thanks, Have just run as advised, LCD reading 81c constant. Actual water temp is a slightly warm constant 37c. Was Fluctuating this morning but is now a constant temp.

Not been serviced since I bought the house, 1.5 years ago. Not found any info on temp sensors anyone help? Cheers

Thanks for the reply, I have just cleaned out the HE again and the flow was good from each side, I checked the condition of the DV and it seemed to move quite freely. once I re-connected the system I watched the DV working correctly in and out as I called for the hot water. I still have the...

I have Vaillant TURBOmax Plus 828 E combi boiler. I had a problem with a shortage of hot water, but have resolved this by flushing out the DHW heat exchanger with strong limescale remover I read about on the net. My current problem is that the temperature of my hot water never gets really hot...