My experience is that the majority of BG engineers are just plain incompetent. I have met some exceptions to the rule and these engineers were very knowledgable - I coulnd't understand how they could work for such a dishonest company.
A recent example: attempted to carry out a LGSR at a tenanted property. The Biasi 24S would not modulate - just max burner or nothing.
BG called out to repair (under contract). I went back - still had the same problem, the teanant said they had spent all day there. Called out BG again (different engineer). Spoke to him at lenght and described the problem - told him the checks to be carried out and likely fix. Got a call from estate agents a few hours later - BG had told them no fault found. Waste of space.
A recent example: attempted to carry out a LGSR at a tenanted property. The Biasi 24S would not modulate - just max burner or nothing.
BG called out to repair (under contract). I went back - still had the same problem, the teanant said they had spent all day there. Called out BG again (different engineer). Spoke to him at lenght and described the problem - told him the checks to be carried out and likely fix. Got a call from estate agents a few hours later - BG had told them no fault found. Waste of space.