The cleaning light blinks 100% of the time - Sharper Image Air Purifiers

which model XL series do you have? There is obviously something shorted or arcing on the plates of the cell. look at the plates and see if they are laying flat and the wires are all still attached across the front of the cell. A loose, sagging, broken or bad contact on the end plates will cause the bad cell lights. clean off the area where the cell makes contact inside the unit. The metal strips that run across the ends of the cell make contact with the plates inside the cell and get their power from them, dirty contacts in any part of these contacts will cause the problem. Even a bad contact from the end cap to the plates inside the cell will cause this. Try wiggling the cell around, kind of push on it on edge to get the plates to shift slightly and clean the points where the plates touch the outer strips on the sides. Check for arcing with the lights turned off,

Did you clean the blades, and let them dry 24 hours?

I believe that a blue blinking light indicates that the stainless steel collection blades need to be wiped clean. The unit uses these blades instead of a replaceable filter. Simply wipe them clean with a damp cloth and you should be ready to go!

Check that there are no fine pieces of lint that are bridging the plates or the ionizing wires, to ground.

Check the contact points of the collector cell and inside the unit.

The light is caused by a shorted collector cell and associated components.

slow blinking light means the unit is in DRY MODE.. flast blinking light means some sort of arcing or bad power supply..
if in dry mode let the unit run for an hour and it will stop blinking ..

If it still works after you cleaned it, consider yourself lucky. If light blinking bothers you, just put a piece of black electrical tape over it and enjoy it. That unit has been driving me nuts for years. I cleaned mine and now it doesn't work at all. A blinking light I could put up with, with a little tape. Enjoy it because it still works.

The ionizers were recalled by Sharper Image due to a lawsuit that they lost forcing the company into chapter 11.

There is a thread on this website with further details.

I have the small version Quatra our older unit finnally died so sharper image sent us this smaller version. This will be the 2nd or 3rd replacement with in a week of getting a repalcement everytime the light starts blinking before it can even get dirty.

Hi there,

We purchased one of these in April 2009. Same issue appeared with us. Cleaned the cell and the "clean collector cell" still stayed illuminated. Checked the manual and the trouble shooting section stated to hold down the "air revitalizer button" till the "clean collector cell" light blinks three times. After this operation the light went out and all was fine!!!! Hopes this clears your issue!