I too have a red light when switched on but soon goes, mines a loose connection it seems but it does work (for now). My biggest concern is this, last year i had a v3. No oils ever in it, just dry herb in the cans. My button started to stick, 2 weeks after it wouldnt turn on at all. Sent it to haze, they said that the electronics board was covered in oil. All my fault they said ! Now my replacement v3 has a sticky button too. I clean vapour chambers, the holes and the airpath every day now to prevent residue build up. Basically following the cleaning instructions from haze. Yet here i am again, same issues ! I cant clean near the electronics board as removing that back cover would invalidate the warranty ! Seems to me that vapour is somehow getting in there. Now normally i would just send it back but after last time, being accused of haze v3 neglect, having to buy another device, not to mention shipping costs to the Usa, iam put off by ever purchasing a haze device again. They really need a service centre/distribution centre in Europe, we are penalised for having warranty issue as it costs quite alot to post. And when i cant clean vital parts of the v3 like around the button, iam left wondering what to do with it. Anybody else have sticky button issues ? Maybe haze have some advice ?