Diag Main has now got a PSL_Chiller message telling me to Check the PSL Chiller.
I ran the PSL Status script to hopefully get some insight.

Laser Status:
    NPRO output power is 1.842W
    AMP1 output power is 70.15W
    AMP2 output power is 137.0W
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN
    PDWD watchdog is GREEN

PMC:
    It has been locked 28 days, 23 hr 15 minutes
    Reflected power = 25.55W
    Transmitted power = 102.4W
    PowerSum = 127.9W

FSS:
    It has been locked for 0 days 3 hr and 32 min
    TPD[V] = 0.781V

ISS:
    The diffracted power is around 4.2%
    Last saturation event was 0 days 3 hours and 32 minutes ago


Possible Issues:
	PMC reflected power is high
	Check chiller (probably low water)



PSL probably wants some water and someone to chill with.
The plots below seem like it might be a little lonely.