I've not had any issues with the fan knob(s) so far. Recently I had some work done on the cooling system of my 2002 Esprit V8, including replacing the hoses and oil "radiator" thing in front of the front driver's wheel. When I was driving it home from the shop finally, I went to turn on the heat, and noticed the fan would not blow. Ugh! I figured that maybe a fuse got blown during the repairs. I then left the car running, with the fan at full blast position. I probed all the fuses in the front bonnet area (didn't get to the back ones), and they all were fine. I went back into the car and noticed the fan was working again?!! Huh? While I'm glad it is, I'm concerned this is the early signs of a bigger problem, either electrical or a bad knob. Anyone else have this happen?