I cleaned my air cleaner and now it will not turn back on

make sure not to forget cleaning the corona wires. i used light grade sandpaper and gently cleaned the wires as well as scrubbed the metal grids with scotch brite pads. the unit has been running normally .

i found a solution to the sparking problem in the ionic breeze. purchased scotch brite cleaning pads from home depot. using a long strip of pad scrub the plates back and forth especially in the areas that seem to be emitting sparks. i did this and the unit runs quiet as a whisper.

The solution drgoff provided ( the guy that used to work for Sharper Image ) actually did the trick !!!! Super excited to have this unit working again , thanks drgoff

Locate the photo electric eye that picks up the need to clean and give it a thorought cleaning. Good Luck and I hope you get it repaired. That photo cell should be your problem It's probably a little black or ruby red dot in a fin or on the housing where yhe air passes.

1. Unplug the unit
2. Turn the unit upside down and listen for the beeds to move along the static wires from top to bottom. Turn it upside down again and again until you feel the static wires are cleaned of grime.
3. Plug it in again and see if the hissing is gone.

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I have been doing research on this unit. I read that only every other grill is suppose to collect. The remaining grills increase the electrostatic charge making the collection plates, the ones that get dirty more effective. So the bottom line is there is nothing wrong with your unit.

Oh there are a lot of known issues! I used to work for sharper image and I believed in this items very much so until mine broke. However after a year I figured out how to fix it. Take the big square collection grid out and the back screen off. Now get you a thick rag and be very careful because there are several tiny wires going up and down. Smaller than dental floss, you need to be very careful because you can either brake them or slice your finger wide open( Under any circumstances I can not be held liable for the information I am giving you try this at your own risk). Now with the towel very gently go up and down each wire like you are polishing a brass pole(once again these wires are thin and can break or cut you). Do this from the back side of the unit and from the inside where the collection grid that you took out sits. Take your time and be thorough, and presto your 400 dollar air cleaner is working again.

You are probably aware that the ionizer uses a very high voltage (at very low current) to function. If you have used a cleaner of some kind on it, you could have made the grid sensitive to moisture.
I would remove the grid again and wash it thoroughly in distilled water to remove any residue that stayed behind, then dry it in warm air before reinstalling it. 

The company is bankrupt so you can no longer get replacemet