The led is still receiving power but not the atty. Any suggetions to revive would be appreciated as dh has disabled 4 pass-throughs. The working 2 power up and the atomizer heats. The diabled ones light up when plugged in but refused to light up or heat the atty when drawn on. I tried a light steaming on the connection end only. It worked on one for a couple of draws, but that's all.