Hi,
I am wondering if anyone can help me with our boiler problems.
We had a Vaillant Ecotec Plus 428 installed last August to an open vented system. We have had a succession of problems from day 1 and Vaillant have been out twice.
Our latest problem is that when both the heating and water is on together, we get a lot of air building up in the system which is turning the water dirty and the boiler then cuts out (S23 error code). I have had to bleed the radiators twice a day so keep them warm and clean the Fernox filter every couple of days.
I have noticed that when both HW and heating on, there are bubbles in the header tank in the loft and a whooshing sound as the air collects. But if I have the HW and heating on separately, there are no bubbles, no whooshing sounds and no air build up in the radiators.
My installers response was that there is a leak in the system and we should have a closed vent system but if that is the case, then why does it only occur when both HW and heating are on together? I could get the system flushed again (as advised by Vaillant) but I don't see any point in doing this until we work out where the air is coming from.
Obviously I now never have the HW and heating on together but its not ideal. If anyone has any ideas, it would be much appreciated.
Thank you
Jane
I am wondering if anyone can help me with our boiler problems.
We had a Vaillant Ecotec Plus 428 installed last August to an open vented system. We have had a succession of problems from day 1 and Vaillant have been out twice.
Our latest problem is that when both the heating and water is on together, we get a lot of air building up in the system which is turning the water dirty and the boiler then cuts out (S23 error code). I have had to bleed the radiators twice a day so keep them warm and clean the Fernox filter every couple of days.
I have noticed that when both HW and heating on, there are bubbles in the header tank in the loft and a whooshing sound as the air collects. But if I have the HW and heating on separately, there are no bubbles, no whooshing sounds and no air build up in the radiators.
My installers response was that there is a leak in the system and we should have a closed vent system but if that is the case, then why does it only occur when both HW and heating are on together? I could get the system flushed again (as advised by Vaillant) but I don't see any point in doing this until we work out where the air is coming from.
Obviously I now never have the HW and heating on together but its not ideal. If anyone has any ideas, it would be much appreciated.
Thank you
Jane