Ionic Pro 901P2RIP04 Air Purifier "makes breeze crackle" Questions

Midi silent air purifier S1853 starting to make a crackling noise I have had this unit for just two months and the grid is clean and ample space for air flow.  The small instruction book included

I own an Ionic Breeze Quadra unit. It has been working fine and I really like it because it removes bad odors from the house. Mine has just started making a hissing noise. Any suggestions? Thanks hi, ...

Ionic breeze is arcing inside unit I have two Sharper Image Ionic Quadra Breezes that I have had less than one year. Both units are cleaned regularly and started to make hissing noises. I cleaned them

...Breeze Quatro Professional Series SI737. Love them. one makes an audible sizzling noise and its getting really annoying. When i replace the insert with my other ionic breeze insert, it runs silent, ...

Unit will sometimes make a crackling noise. I have a Quatra unit that has occasionally started to make popping and crackling noises. I clean it regularly but that doesn't seem to make a difference. ...

I cleaned my io breeze quadra plates with rubbing alcohol reinserted and turned it on, it made some crackling noises and started emmiting a burning smell like a hot transformer pulled insert plates ...