I am not a gas fitter or heating Technician ... I have to assume that Gas Safe registerred Technicians are competent to do the work.
I fully accept 1 guy could be poor, but 9 different guys ... and the manufacturer.
In my case I'm under contract until next June so can't go elsewhere ... all I was trying to do was find some possible leads ... that I could pass on .... it benefits me if they can fix it sooner rather than later, but my questions seem to convince people I am intending to do work myself.
As an aside I only posted Q here as trying to Google the problem turned up a post where a guy had brought Barcelona up to 100He spec.
It had fixed his issues.
I fully accept 1 guy could be poor, but 9 different guys ... and the manufacturer.
In my case I'm under contract until next June so can't go elsewhere ... all I was trying to do was find some possible leads ... that I could pass on .... it benefits me if they can fix it sooner rather than later, but my questions seem to convince people I am intending to do work myself.
As an aside I only posted Q here as trying to Google the problem turned up a post where a guy had brought Barcelona up to 100He spec.
It had fixed his issues.