I notice that the TCS Y laser is off and reporting a flow alarm. The flow meter shows that the chiller is currently running. I don't think this laser was in use but was running and it would be better not to leave it in this alarm state. Either the power supply should be turned off if the laser is not needed, or it should be reset by turning the controller key on/off and pressing the gate button on the controller.
An instruction on how to restart TCS chiller and controller box can be found here.
Both TCSX and TCSY chillers were found to be tripped with an error messgage 'Low Temp'. I have power cycled the two units. And cycled the key on the X and Y CO2 laser controllers. They are now back up and functioning.
Thanks Kiwamu. The LOW TEMP warning will almost certainly have occured because the DAC at some point has been restarted and caused a zero voltage out to the chillers. This problem is meant to be getting fixed soon with an electronics fix.
It looks like the lasers are now ready to lase, and now you've reset the warnings with the key to get them running you probably just need to press the gate (on/off) button on the front of the controller. I'm not sure you need them right now though.