Guide :Air Purifiers : Pure-Ion (506840) Air Purifier
I get the Buzzer with an illuminated panel
I have the Brookstone Pure-ion advanced (506840). I recently washed and cleaned the filters. After drying and reinserting the filters into the unit I started the machine. During the intial start sequence the CLEAN FILTER light illuminates. The unit operates normally for a few minutes, then a buzzer goes off and the whole panel lights up. The machine doesn't shut off, the fan continues to run. I have reset the unit multiple times by pressing and holding the FAN SPEED icon for 10 sec. So far the machine has worked correctly only once since I first experienced this problem.