G G garydodson1972 26 Sep 2012 i have a glow-worm 30cxi boiler losing pressure every time heating is on had new exp/chamber but still not good it is losing water through relief valve please help i have hd 12 engineers out none have a clue
i have a glow-worm 30cxi boiler losing pressure every time heating is on had new exp/chamber but still not good it is losing water through relief valve please help i have hd 12 engineers out none have a clue