The top fill valve is being controled to full open. I believe that it may be the valve card and cycle power, the valve still drives closed.
Called cryo tech on call, cycled power on LL meter, valve still drives closed.
Decided to change valve card but when I got back with the card the system
was working properly. Karma? Future TOCs should be aware of this problem
as I suspect the card is dieing from radiation.
A copy of this log entry has been emailed to: fansler@jlab.org