Search results

I took the DHW heat exchanger off to clean as after 20minutes it would cycle and it was dirty but nothing extreme. I then flushed DS40 (I put X400 in my orignial post it was infact x800 I tired first) round the boiler and a couple of radiators which has improved the performance significantly...

My parents are having poor performance from the central heating the radiators are only getting fairly warm rather than hot. They live in an old house with high ceilings so have 11 large radiators which with the recent cold weather has resulted in the heating being unable to get the temperature...