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Hi All, Have an unvented system linked to suprima 70l. Am constantly having to bleed the system of air, at least every other day. Can anyone suggest how air would be entering a fully sealed system, as I believe we ensure all the air is out when we fill the system. Thanks for any help...

Hi, I have just installed a Santon Premier Plus System fit cylinder in my loft. It is wired to a Suprima 70L boiler, which unfortunately refuses to fire. After switching on the power, the pump on the cylinder runs continuously, however the boiler's red light comes on, and not much else...