...
Troubleshoots
| Issue | Reason | What to do? |
|---|---|---|
| If QT-HMI has an alram window opened and showing the codes 603 and 602 | It's a known warning from some software development → close the window | HR3 Tripped Warning Message |
| If the QT-HMI got frozen | How to fix the QT-HMI if its screen got frozen | |
| If the Dewar level indicators have large fluctuations | Level sensor tubes are contaminated | Fixing dewar level indicator FNAL Approved procedure: https://seaquest-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=10401 |
| Coldheads blocking alarm | Possible contamination or cold heads have been running so long without any intake gHe for a while | |
...