Does this component look familiar? Diode?

I have to rebuild this small board for a piece of my printing equipment. It's a bank of quartz bulbs that serves as a flash dryer for ink. It runs on 220 and has various timers and switches to turn on/off certain bulbs and change dwell times, etc. Fairly basic, but I cannot for the life of me figure out what this little blue component is. No markings at all on it. One end goes to the orange cap and the other goes to a big round triac. Pics in the album. Yes, my electronics knowledge is one step above Luddite and I have an unhealthy thirst for DIY. Guessing the board is 20-15 years old.

Thanks for your time and brain power!

by sawduster
August 03, 2021

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