This is a backup note that several days ago, when I was working on the TEC servo for SHG and OPO, I found that the SHG TEC excitation was left on for a while (months)..

This can be related to the green power fluctuations, I turned that off, and we should make sure that excitation to be OFF.

It seems this happened due to the Beckoff crashed and restart, and the default of this switch is on, which Livingston may have the same situation for attention.