I've had this diffuser for about 3 months, and it has already stopped working. I plugged it in one morning and pressed the "on mode" button. It started flashing red lights on and of and made beeping noises. It would not diffuse. I tried adding more water and taking less water out, but nothing worked. I tried taking the cord out of the diffuser and out of the wall and plugging it back in the next day, but still no luck.