Thanks all. Unfortunately, my second replacement Brazen has seem to have bit the dust with the same problem as the first -- solenoid failure (my diagnosis). Water doesn't drain all the way out (drains about 50%). And when I try the manual release option, it just sits there and hums without any draining. I run exclusively RO water and even tried descaling with no positive results.
Both have lasted about 1 year. What a bummer. I have filed with tech support but haven't heard anything (presumably due to Thanksgiving).
Happy Holidays!
Peter (the other Peter)