I have a 3 year old Coast Manhattan Spa with a built in Del Ozonator.
From the research I did it sounded like it was probably past its life span and could use a replacement CD chip.
I installed the new chip today, but I still cannot see a light in the clear window.
Does anyone have any experience with these? Does the the light flash, or is it supposed to be on steady? I checked after manually starting the filtration cycle, and can't distinguish any light in the clear window in my Dell Exlipse Ozonator.
Any ideas?

I have fixed the problem.
Their should be a definite blue glow visible in the window.