The first fault was a FC and a ZFCT, after the cryo recoverd I reset from the computer but the faults did not clear on the power supply but did on the computer. I tried to start the PS but got into chasing the phantom fault that leaves the on light on on the computer but no fault on the PS.
Went through many iterations of this because in the past it would clear in time.
The fault then changed to an FC and the computer no longer changed to on.
The staus now is the FC on the power supply will not clear at all ( not even rebooting the AB) and the computer clears on the screen but faults when you try to start the PS.
Jack says it may be in the firing circuit or the SCRs. We will wait till
Mon. to start this work.
A copy of this log entry has been emailed to: fansler@jlab.org