I've just been using it and I cant say that I can't hear the click as with my PU-2D of the maganetic switch cutting in and out to control the temp. It is constant engaged it will explain the tip overheating but its not to the point of getting red hot which I have read from other users. The iron seems to 'work' when the nut is not overtight to the thread.
Regards
Regards
if all else fails...read the instructions!







