Hi All, I have just fitted an Ariston Aures slimline in-line under sink water heater, which is for one mixer tap. Very straightforward fit, dedicated power source and good mains water pressure. The unit worked when tested after fitting, but after plumbing to the tap about 10 days later, it won’t now heat. Power supply is reaching the unit and Ariston Water Heaters Philippines, Quezon City, Philippines. 41,324 likes · 9 talking about this. Our mission is to bring thermal comfort to everyone, even where it seems hard or impossible to find i 57B4fM.