PowerPar - Not Striking

Hello, I am currently working on 2 PowerPars that we have in stock that are having similar issues.

On power up the lamp arcs over with the primary arc. Which is a really dim blue glow. It will stay like this for a few seconds then it will shut off.

Do you guys have any ideas what could be causing this? I have the balast opened up (they're far out of warranty) and no worries I work with high voltage electronics all the time - was an EE major for a while in college.

Any input is greatly appreciated.

Regards,

Max

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