Tore my Keirig Elite down after repeated failure to brew, overflow to the reservoir and leaks. Leak is coming from a corroded control valve at the top left rear of the unit, attached to the side of the water heating tank. Lots of rust and the resulting bloom has compromised the seal on the valve and likely its operation. The silver top of the unit refuses to separate from the base through any gentle and not so gentle persuasion. I cannot access the valve without destroying the top of the casing. The valve looks pretty terminal whether I can reach it or not. I'm calling it, time of death 1:26 pm.