Living Air XL AIR PURIFIER-FILTER-IONIZER for parts/repair?

This ionizer is in very nice cosmetic shape but as far as I can tell is not working correctly. Being sold as-is for parts or repair.

It powers up, fan works, power light works, power switch works, and fan speed control works. When I turn Purifier knob up or down I don't hear the quiet buzzing that I believe indicates the ionizer is working. I don't detect the "sweet" ozone smell that am used to these putting out when they are working correctly either. Looking at the back I see that the little neon light over the ozone plate does not light up. The other neon orange light in front of the circular metal shield thing IS lit up when powered on.

No apparent missing or broken parts. Original ozone plate is included and appears to be in nice shape. Very little wear and pretty clean.

Send your zip code for ship cost- should be between $6.95 and $11.95 if you are in the continental USA (Nov. 2012).