i tried my 1st smoke yesterday and the fuse was blown in my PID. couldnt read the value but found a 10 amp that would fir. the manual didnt give a description of a replacement fuse but stated the unit can handle 13 amp at 120v, thats why i played it safe with the 10amp. got a hold of Auberins tech people today and the actual fuse size is: 5 x 20 mm and 15 amp. just so people will know if they have a problem.