Thyratron unit failed over temp

[i200yrs]

Hello All...is there anyone have thyratron experience...Our system detects "thyratron over temp" and shut off after hours running. Check the fans, thermostat, and other passive parts were all ok...I am thinking probably the thyratron itself is the problem. The thyratron part number us CX2608. Really appreciate any tips from you all...thanks

Note:
I have multiple repair success I posted on this site --> https://elex518.blogspot.com/
Some were critical parts...But this thyratron unit is new to me...hoping your support...thanks

 

[ZASto]

First of all, you have to become familiar with these tubes.
Read for start: https://en.wikipedia.org/wiki/Thyratron
Then, read this: https://cloud.mail.ru/public/2Vdp/2hS84qhtt