D
daicanal
i have a eurocombi ariston boiler either a/23 or a/27 mffi not sure which. when i turn my hot water on nothing happens, but a red light comes on the boiler insufficient system pressure according to mannual. but when i run the central heating i get hot water through the taps. would be glad for some advice, had it seviced 2 weeks ago. also the boiler is 11 yers old.