1) If the flat lamp on the outside of the IGRINS cal unit is staying on, take a flat image to reset the power state in the control software.
2) If the auto-guide software is over-correcting and the source is oscillating around the slit, change the scaling factor in the offending direction.
3) If icsrun start-up routine fails to start and reports an error with the logging routine then reset permissions with:
igrins% sudo sh icsrun
4) When the Instrument Control Computer (ICC) has the screen freeze, look for an unresponsive script in the background:
command-option-escape
5) If you need to reinitialize the detector than follow the same steps as initialization in the Full Startup Procedures, except do not reload the JADE2 firmware.
6) Growling/Gurgling sounds from the coldhead may mean that the power cable has been compromised and needs to be replaced. More information available here.