Hang, Sheila

Both end station HEPI pump controllers tripped this afternoon at 20:55 and 20:26 UTC.  We also got end station temperature low warning from verbal alarms 22:02 UTC.  In 37359 Jeff K says that the HEPI pump station trip seems to happen in the summer, and it is hot this weekend.  

Hang and I followed the first few steps of the instructions given in  37359, but it seems that at EX some of the hardware is different so we couldn't identify some of the things the instructions say to check.  

We abandoned EX and decided to check at EY, but again didn't feel confident enough to continue.  

• The fluid level is just over 9.5 inches, while the instructions say it should be 8.5 inches.  We don't know if that is a problem.  
• The instructions also say there should be a red status OK light in addition to the blinking green heartbeat light.  We saw a red light below Level Alarm. (photo will be attached)
• We thought we found the VFD box, which the instructions say to open.  However, the box we were looking at has a warning about high voltage and do not open without disconnecting, so we were hesitant to open it.  

We have given up for now (Hang was trying to do some measurements for ISI to suspension FF) and think this can wait for monday.